diff --git a/telephony/java/com/android/ims/ImsCallForwardInfo.aidl b/telephony/java/com/android/ims/ImsCallForwardInfo.aidl
new file mode 100644
index 0000000..a7c3f9a
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsCallForwardInfo.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+parcelable ImsCallForwardInfo;
diff --git a/telephony/java/com/android/ims/ImsCallForwardInfo.java b/telephony/java/com/android/ims/ImsCallForwardInfo.java
new file mode 100644
index 0000000..3f8fd19
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsCallForwardInfo.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Provides the call forward information for the supplementary service configuration.
+ *
+ * @hide
+ */
+public class ImsCallForwardInfo implements Parcelable {
+    // Refer to ImsUtInterface#CDIV_CF_XXX
+    public int mCondition;
+    // 0: disabled, 1: enabled
+    public int mStatus;
+    // 0x91: International, 0x81: Unknown
+    public int mToA;
+    // Number (it will not include the "sip" or "tel" URI scheme)
+    public String mNumber;
+    // No reply timer for CF
+    public int mTimeSeconds;
+
+    public ImsCallForwardInfo() {
+    }
+
+    public ImsCallForwardInfo(Parcel in) {
+        readFromParcel(in);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mCondition);
+        out.writeInt(mStatus);
+        out.writeInt(mToA);
+        out.writeString(mNumber);
+        out.writeInt(mTimeSeconds);
+    }
+
+    @Override
+    public String toString() {
+        return super.toString() + ", Condition: " + mCondition
+            + ", Status: " + ((mStatus == 0) ? "disabled" : "enabled")
+            + ", ToA: " + mToA + ", Number=" + mNumber
+            + ", Time (seconds): " + mTimeSeconds;
+    }
+
+    private void readFromParcel(Parcel in) {
+        mCondition = in.readInt();
+        mStatus = in.readInt();
+        mToA = in.readInt();
+        mNumber = in.readString();
+        mTimeSeconds = in.readInt();
+    }
+
+    public static final Creator<ImsCallForwardInfo> CREATOR =
+            new Creator<ImsCallForwardInfo>() {
+        @Override
+        public ImsCallForwardInfo createFromParcel(Parcel in) {
+            return new ImsCallForwardInfo(in);
+        }
+
+        @Override
+        public ImsCallForwardInfo[] newArray(int size) {
+            return new ImsCallForwardInfo[size];
+        }
+    };
+}
diff --git a/telephony/java/com/android/ims/ImsCallProfile.aidl b/telephony/java/com/android/ims/ImsCallProfile.aidl
new file mode 100644
index 0000000..a356d13
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsCallProfile.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+parcelable ImsCallProfile;
diff --git a/telephony/java/com/android/ims/ImsCallProfile.java b/telephony/java/com/android/ims/ImsCallProfile.java
new file mode 100644
index 0000000..208f467
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsCallProfile.java
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+import android.os.Bundle;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Parcelable object to handle IMS call profile.
+ * It is created from GSMA IR.92/IR.94, 3GPP TS 24.229/TS 26.114/TS26.111.
+ * It provides the service and call type, the additional information related to the call.
+ *
+ * @hide
+ */
+public class ImsCallProfile implements Parcelable {
+    private static final String TAG = "ImsCallProfile";
+
+    /**
+     * Service types
+     */
+    /**
+     * It is for a special case. It helps that the application can make a call
+     * without IMS connection (not registered).
+     * In the moment of the call initiation, the device try to connect to the IMS network
+     * and initiates the call.
+     */
+    public static final int SERVICE_TYPE_NONE = 0;
+    /**
+     * It is a default type and can be selected when the device is connected to the IMS network.
+     */
+    public static final int SERVICE_TYPE_NORMAL = 1;
+    /**
+     * It is for an emergency call.
+     */
+    public static final int SERVICE_TYPE_EMERGENCY = 2;
+
+    /**
+     * Call types
+     */
+    /**
+     * IMSPhone to support IR.92 & IR.94 (voice + video upgrade/downgrade)
+     */
+    public static final int CALL_TYPE_VOICE_N_VIDEO = 1;
+    /**
+     * IR.92 (Voice only)
+     */
+    public static final int CALL_TYPE_VOICE = 2;
+    /**
+     * VT to support IR.92 & IR.94 (voice + video upgrade/downgrade)
+     */
+    public static final int CALL_TYPE_VIDEO_N_VOICE = 3;
+    /**
+     * Video Telephony (audio / video two way)
+     */
+    public static final int CALL_TYPE_VT = 4;
+    /**
+     * Video Telephony (audio two way / video TX one way)
+     */
+    public static final int CALL_TYPE_VT_TX = 5;
+    /**
+     * Video Telephony (audio two way / video RX one way)
+     */
+    public static final int CALL_TYPE_VT_RX = 6;
+    /**
+     * Video Telephony (audio two way / video inactive)
+     */
+    public static final int CALL_TYPE_VT_NODIR = 7;
+    /**
+     * VideoShare (video two way)
+     */
+    public static final int CALL_TYPE_VS = 8;
+    /**
+     * VideoShare (video TX one way)
+     */
+    public static final int CALL_TYPE_VS_TX = 9;
+    /**
+     * VideoShare (video RX one way)
+     */
+    public static final int CALL_TYPE_VS_RX = 10;
+
+    /**
+     * Extra properties for IMS call.
+     */
+    /**
+     * Boolean extra properties - "true" / "false"
+     *  conference : Indicates if the session is for the conference call or not.
+     *  e_call : Indicates if the session is for the emergency call or not.
+     *  vms : Indicates if the session is connected to the voice mail system or not.
+     *  call_mode_changeable : Indicates if the session is able to upgrade/downgrade
+     *      the video during voice call.
+     *  conference_avail : Indicates if the session can be extended to the conference.
+     */
+    public static final String EXTRA_CONFERENCE = "conference";
+    public static final String EXTRA_E_CALL = "e_call";
+    public static final String EXTRA_VMS = "vms";
+    public static final String EXTRA_CALL_MODE_CHANGEABLE = "call_mode_changeable";
+    public static final String EXTRA_CONFERENCE_AVAIL = "conference_avail";
+
+    /**
+     * Integer extra properties
+     *  oir : Rule for originating identity (number) presentation, MO/MT.
+     *      {@link ImsCallProfile#OIR_DEFAULT}
+     *      {@link ImsCallProfile#OIR_PRESENTATION_RESTRICTED}
+     *      {@link ImsCallProfile#OIR_PRESENTATION_NOT_RESTRICTED}
+     *  cnap : Rule for calling name presentation
+     *      {@link ImsCallProfile#OIR_DEFAULT}
+     *      {@link ImsCallProfile#OIR_PRESENTATION_RESTRICTED}
+     *      {@link ImsCallProfile#OIR_PRESENTATION_NOT_RESTRICTED}
+     *  dialstring : To identify the Ims call type, MO
+     *      {@link ImsCallProfile#DIALSTRING_NORMAL_CALL}
+     *      {@link ImsCallProfile#DIALSTRING_SS_CONF}
+     *      {@link ImsCallProfile#DIALSTRING_USSD}
+     */
+    public static final String EXTRA_OIR = "oir";
+    public static final String EXTRA_CNAP = "cnap";
+    public static final String EXTRA_DIALSTRING = "dialstring";
+
+    /**
+     * Values for EXTRA_OIR / EXTRA_CNAP
+     */
+    public static final int OIR_DEFAULT = 0;    // "user subscription default value"
+    public static final int OIR_PRESENTATION_RESTRICTED = 1;
+    public static final int OIR_PRESENTATION_NOT_RESTRICTED = 2;
+
+    /**
+     * Values for EXTRA_DIALSTRING
+     */
+    // default (normal call)
+    public static final int DIALSTRING_NORMAL = 0;
+    // Call for SIP-based user configuration
+    public static final int DIALSTRING_SS_CONF = 1;
+    // Call for USSD message
+    public static final int DIALSTRING_USSD = 2;
+
+    /**
+     * String extra properties
+     *  oi : Originating identity (number), MT only
+     *  cna : Calling name
+     *  ussd : For network-initiated USSD, MT only
+     *  remote_uri : Connected user identity (it can be used for the conference)
+     */
+    public static final String EXTRA_OI = "oi";
+    public static final String EXTRA_CNA = "cna";
+    public static final String EXTRA_USSD = "ussd";
+    public static final String EXTRA_REMOTE_URI = "remote_uri";
+
+    public int mServiceType;
+    public int mCallType;
+    public Bundle mCallExtras;
+    public ImsStreamMediaProfile mMediaProfile;
+
+
+
+    public ImsCallProfile(Parcel in) {
+        readFromParcel(in);
+    }
+
+    public ImsCallProfile() {
+        mServiceType = SERVICE_TYPE_NORMAL;
+        mCallType = CALL_TYPE_VOICE_N_VIDEO;
+        mCallExtras = new Bundle();
+        mMediaProfile = new ImsStreamMediaProfile();
+    }
+
+    public ImsCallProfile(int serviceType, int callType) {
+        mServiceType = serviceType;
+        mCallType = callType;
+        mCallExtras = new Bundle();
+        mMediaProfile = new ImsStreamMediaProfile();
+    }
+
+    public String getCallExtra(String name) {
+        return getCallExtra(name, "");
+    }
+
+    public String getCallExtra(String name, String defaultValue) {
+        if (mCallExtras == null) {
+            return defaultValue;
+        }
+
+        return mCallExtras.getString(name, defaultValue);
+    }
+
+    public boolean getCallExtraBoolean(String name) {
+        return getCallExtraBoolean(name, false);
+    }
+
+    public boolean getCallExtraBoolean(String name, boolean defaultValue) {
+        if (mCallExtras == null) {
+            return defaultValue;
+        }
+
+        return mCallExtras.getBoolean(name, defaultValue);
+    }
+
+    public int getCallExtraInt(String name) {
+        return getCallExtraInt(name, -1);
+    }
+
+    public int getCallExtraInt(String name, int defaultValue) {
+        if (mCallExtras == null) {
+            return defaultValue;
+        }
+
+        return mCallExtras.getInt(name, defaultValue);
+    }
+
+    public void setCallExtra(String name, String value) {
+        if (mCallExtras != null) {
+            mCallExtras.putString(name, value);
+        }
+    }
+
+    public void setCallExtraBoolean(String name, boolean value) {
+        if (mCallExtras != null) {
+            mCallExtras.putBoolean(name, value);
+        }
+    }
+
+    public void setCallExtraInt(String name, int value) {
+        if (mCallExtras != null) {
+            mCallExtras.putInt(name, value);
+        }
+    }
+
+    public void updateCallType(ImsCallProfile profile) {
+        mCallType = profile.mCallType;
+    }
+
+    public void updateCallExtras(ImsCallProfile profile) {
+        mCallExtras.clear();
+        mCallExtras = (Bundle) profile.mCallExtras.clone();
+    }
+
+    @Override
+    public String toString() {
+        return "{ serviceType=" + mServiceType +
+                ", callType=" + mCallType +
+                ", callExtras=" + mCallExtras.toString() +
+                ", mediaProfile=" + mMediaProfile.toString() + " }";
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mServiceType);
+        out.writeInt(mCallType);
+        out.writeParcelable(mCallExtras, 0);
+        out.writeParcelable(mMediaProfile, 0);
+    }
+
+    private void readFromParcel(Parcel in) {
+        mServiceType = in.readInt();
+        mCallType = in.readInt();
+        mCallExtras = in.readParcelable(null);
+        mMediaProfile = in.readParcelable(null);
+    }
+
+    public static final Creator<ImsCallProfile> CREATOR = new Creator<ImsCallProfile>() {
+        @Override
+        public ImsCallProfile createFromParcel(Parcel in) {
+            return new ImsCallProfile(in);
+        }
+
+        @Override
+        public ImsCallProfile[] newArray(int size) {
+            return new ImsCallProfile[size];
+        }
+    };
+}
diff --git a/telephony/java/com/android/ims/ImsConferenceState.aidl b/telephony/java/com/android/ims/ImsConferenceState.aidl
new file mode 100644
index 0000000..2fc029f
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsConferenceState.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+parcelable ImsConferenceState;
diff --git a/telephony/java/com/android/ims/ImsConferenceState.java b/telephony/java/com/android/ims/ImsConferenceState.java
new file mode 100644
index 0000000..f708d5b
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsConferenceState.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import android.os.Bundle;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Provides the conference information (defined in RFC 4575) for IMS conference call.
+ *
+ * @hide
+ */
+public class ImsConferenceState implements Parcelable {
+    /**
+     * conference-info : user
+     */
+    // user (String) : Tel or SIP URI
+    public static final String USER = "user";
+    // user > display text (String)
+    public static final String DISPLAY_TEXT = "display-text";
+    // user > endpoint (String) : URI or GRUU or Phone number
+    public static final String ENDPOINT = "endpoint";
+    // user > endpoint > status
+    public static final String STATUS = "status";
+
+    /**
+     * status-type (String) :
+     * "pending" : Endpoint is not yet in the session, but it is anticipated that he/she will
+     *      join in the near future.
+     * "dialing-out" : Focus has dialed out to connect the endpoint to the conference,
+     *      but the endpoint is not yet in the roster (probably being authenticated).
+     * "dialing-in" : Endpoint is dialing into the conference, not yet in the roster
+     *      (probably being authenticated).
+     * "alerting" : PSTN alerting or SIP 180 Ringing was returned for the outbound call;
+     *      endpoint is being alerted.
+     * "on-hold" : Active signaling dialog exists between an endpoint and a focus,
+     *      but endpoint is "on-hold" for this conference, i.e., he/she is neither "hearing"
+     *      the conference mix nor is his/her media being mixed in the conference.
+     * "connected" : Endpoint is a participant in the conference. Depending on the media policies,
+     *      he/she can send and receive media to and from other participants.
+     * "disconnecting" : Focus is in the process of disconnecting the endpoint
+     *      (e.g. in SIP a DISCONNECT or BYE was sent to the endpoint).
+     * "disconnected" : Endpoint is not a participant in the conference, and no active dialog
+     *      exists between the endpoint and the focus.
+     * "muted-via-focus" : Active signaling dialog exists beween an endpoint and a focus and
+     *      the endpoint can "listen" to the conference, but the endpoint's media is not being
+     *      mixed into the conference.
+     * "connect-fail" : Endpoint fails to join the conference by rejecting the conference call.
+     */
+    public static final String STATUS_PENDING = "pending";
+    public static final String STATUS_DIALING_OUT = "dialing-out";
+    public static final String STATUS_DIALING_IN = "dialing-in";
+    public static final String STATUS_ALERTING = "alerting";
+    public static final String STATUS_ON_HOLD = "on-hold";
+    public static final String STATUS_CONNECTED = "connected";
+    public static final String STATUS_DISCONNECTING = "disconnecting";
+    public static final String STATUS_DISCONNECTED = "disconnected";
+    public static final String STATUS_MUTED_VIA_FOCUS = "muted-via-focus";
+    public static final String STATUS_CONNECT_FAIL = "connect-fail";
+
+    /**
+     * conference-info : SIP status code (integer)
+     */
+    public static final String SIP_STATUS_CODE = "sipstatuscode";
+
+    public HashMap<String, Bundle> mParticipants = new HashMap<String, Bundle>();
+
+    public ImsConferenceState() {
+    }
+
+    public ImsConferenceState(Parcel in) {
+        readFromParcel(in);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mParticipants.size());
+
+        if (mParticipants.size() > 0) {
+            Set<Entry<String, Bundle>> entries = mParticipants.entrySet();
+
+            if (entries != null) {
+                Iterator<Entry<String, Bundle>> iterator = entries.iterator();
+
+                while (iterator.hasNext()) {
+                    Entry<String, Bundle> entry = iterator.next();
+
+                    out.writeString(entry.getKey());
+                    out.writeParcelable(entry.getValue(), 0);
+                }
+            }
+        }
+    }
+
+    private void readFromParcel(Parcel in) {
+        int size = in.readInt();
+
+        for (int i = 0; i < size; ++i) {
+            String user = in.readString();
+            Bundle state = in.readParcelable(null);
+            mParticipants.put(user, state);
+        }
+    }
+
+    public static final Creator<ImsConferenceState> CREATOR =
+            new Creator<ImsConferenceState>() {
+        @Override
+        public ImsConferenceState createFromParcel(Parcel in) {
+            return new ImsConferenceState(in);
+        }
+
+        @Override
+        public ImsConferenceState[] newArray(int size) {
+            return new ImsConferenceState[size];
+        }
+    };
+}
diff --git a/telephony/java/com/android/ims/ImsReasonInfo.aidl b/telephony/java/com/android/ims/ImsReasonInfo.aidl
new file mode 100644
index 0000000..17e6d3a
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsReasonInfo.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+parcelable ImsReasonInfo;
diff --git a/telephony/java/com/android/ims/ImsReasonInfo.java b/telephony/java/com/android/ims/ImsReasonInfo.java
new file mode 100644
index 0000000..99faba6
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsReasonInfo.java
@@ -0,0 +1,326 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * This class enables an application to get details on why a method call failed.
+ *
+ * @hide
+ */
+public class ImsReasonInfo implements Parcelable {
+
+    /**
+     * Reason types, defines the error category.
+     *    UNSPECIFIED - unknown error reason
+     *    LOCAL - indicates the local/device error reason
+     *    LOCAL_TIMEOUT - indicates the local error reason when a specific timer is expired
+     *    STATUSCODE - indicates the interworking error reason by SIP status code received
+     *        from the network
+     *    MEDIA - indicates the media error reason (local resource, SDP parameter, etc.)
+     *    USER - indicates the error reason by the local or remote user
+     *    UT - indicates the error reason for the supplementary service configuration
+     */
+    public static final int TYPE_UNSPECIFIED = 0;
+    public static final int TYPE_LOCAL = 1;
+    public static final int TYPE_TIMEOUT = 2;
+    public static final int TYPE_STATUSCODE = 3;
+    public static final int TYPE_MEDIA = 4;
+    public static final int TYPE_USER = 5;
+    public static final int TYPE_UT = 8;
+
+    /**
+     * Specific code of each types
+     */
+    public static final int CODE_UNSPECIFIED = 0;
+
+    /**
+     * LOCAL
+     */
+    // IMS -> Telephony
+    // The passed argument is an invalid
+    public static final int CODE_LOCAL_ILLEGAL_ARGUMENT = 101;
+    // The operation is invoked in invalid call state
+    public static final int CODE_LOCAL_ILLEGAL_STATE = 102;
+    // IMS service internal error
+    public static final int CODE_LOCAL_INTERNAL_ERROR = 103;
+    // IMS service goes down (service connection is lost)
+    public static final int CODE_LOCAL_IMS_SERVICE_DOWN = 106;
+    // No pending incoming call exists
+    public static final int CODE_LOCAL_NO_PENDING_CALL = 107;
+
+    // IMS -> Telephony
+    // Service unavailable; by power off
+    public static final int CODE_LOCAL_POWER_OFF = 111;
+    // Service unavailable; by low battery
+    public static final int CODE_LOCAL_LOW_BATTERY = 112;
+    // Service unavailable; by out of service (data service state)
+    public static final int CODE_LOCAL_NETWORK_NO_SERVICE = 121;
+    // Service unavailable; by no LTE coverage
+    // (VoLTE is not supported even though IMS is registered)
+    public static final int CODE_LOCAL_NETWORK_NO_LTE_COVERAGE = 122;
+    // Service unavailable; by located in roaming area
+    public static final int CODE_LOCAL_NETWORK_ROAMING = 123;
+    // Service unavailable; by IP changed
+    public static final int CODE_LOCAL_NETWORK_IP_CHANGED = 124;
+    // Service unavailable; other
+    public static final int CODE_LOCAL_SERVICE_UNAVAILABLE = 131;
+    // Service unavailable; IMS connection is lost (IMS is not registered)
+    public static final int CODE_LOCAL_NOT_REGISTERED = 132;
+
+    // IMS <-> Telephony
+    // Max call exceeded
+    public static final int CODE_LOCAL_CALL_EXCEEDED = 141;
+    // IMS <- Telephony
+    // Call busy
+    public static final int CODE_LOCAL_CALL_BUSY = 142;
+    // Call decline
+    public static final int CODE_LOCAL_CALL_DECLINE = 143;
+    // IMS -> Telephony
+    // SRVCC is in progress
+    public static final int CODE_LOCAL_CALL_VCC_ON_PROGRESSING = 144;
+    // Resource reservation is failed (QoS precondition)
+    public static final int CODE_LOCAL_CALL_RESOURCE_RESERVATION_FAILED = 145;
+    // Retry CS call; VoLTE service can't be provided by the network or remote end
+    // Resolve the extra code(EXTRA_CODE_CALL_RETRY_*) if the below code is set
+    public static final int CODE_LOCAL_CALL_CS_RETRY_REQUIRED = 146;
+    // Retry VoLTE call; VoLTE service can't be provided by the network temporarily
+    public static final int CODE_LOCAL_CALL_VOLTE_RETRY_REQUIRED = 147;
+    // IMS call is already terminated (in TERMINATED state)
+    public static final int CODE_LOCAL_CALL_TERMINATED = 148;
+
+    /**
+     * TIMEOUT (IMS -> Telephony)
+     */
+    // 1xx waiting timer is expired after sending INVITE request (MO only)
+    public static final int CODE_TIMEOUT_1XX_WAITING = 201;
+    // User no answer during call setup operation (MO/MT)
+    // MO : 200 OK to INVITE request is not received,
+    // MT : No action from user after alerting the call
+    public static final int CODE_TIMEOUT_NO_ANSWER = 202;
+    // User no answer during call update operation (MO/MT)
+    // MO : 200 OK to re-INVITE request is not received,
+    // MT : No action from user after alerting the call
+    public static final int CODE_TIMEOUT_NO_ANSWER_CALL_UPDATE = 203;
+
+    /**
+     * STATUSCODE (SIP response code) (IMS -> Telephony)
+     */
+    // 3xx responses
+    // SIP request is redirected
+    public static final int CODE_SIP_REDIRECTED = 321;
+    // 4xx responses
+    // 400 : Bad Request
+    public static final int CODE_SIP_BAD_REQUEST = 331;
+    // 403 : Forbidden
+    public static final int CODE_SIP_FORBIDDEN = 332;
+    // 404 : Not Found
+    public static final int CODE_SIP_NOT_FOUND = 333;
+    // 415 : Unsupported Media Type
+    // 416 : Unsupported URI Scheme
+    // 420 : Bad Extension
+    public static final int CODE_SIP_NOT_SUPPORTED = 334;
+    // 408 : Request Timeout
+    public static final int CODE_SIP_REQUEST_TIMEOUT = 335;
+    // 480 : Temporarily Unavailable
+    public static final int CODE_SIP_TEMPRARILY_UNAVAILABLE = 336;
+    // 484 : Address Incomplete
+    public static final int CODE_SIP_BAD_ADDRESS = 337;
+    // 486 : Busy Here
+    // 600 : Busy Everywhere
+    public static final int CODE_SIP_BUSY = 338;
+    // 487 : Request Terminated
+    public static final int CODE_SIP_REQUEST_CANCELLED = 339;
+    // 406 : Not Acceptable
+    // 488 : Not Acceptable Here
+    // 606 : Not Acceptable
+    public static final int CODE_SIP_NOT_ACCEPTABLE = 340;
+    // 410 : Gone
+    // 604 : Does Not Exist Anywhere
+    public static final int CODE_SIP_NOT_REACHABLE = 341;
+    // Others
+    public static final int CODE_SIP_CLIENT_ERROR = 342;
+    // 5xx responses
+    // 501 : Server Internal Error
+    public static final int CODE_SIP_SERVER_INTERNAL_ERROR = 351;
+    // 503 : Service Unavailable
+    public static final int CODE_SIP_SERVICE_UNAVAILABLE = 352;
+    // 504 : Server Time-out
+    public static final int CODE_SIP_SERVER_TIMEOUT = 353;
+    // Others
+    public static final int CODE_SIP_SERVER_ERROR = 354;
+    // 6xx responses
+    // 603 : Decline
+    public static final int CODE_SIP_USER_REJECTED = 361;
+    // Others
+    public static final int CODE_SIP_GLOBAL_ERROR = 362;
+
+    /**
+     * MEDIA (IMS -> Telephony)
+     */
+    // Media resource initialization failed
+    public static final int CODE_MEDIA_INIT_FAILED = 401;
+    // RTP timeout (no audio / video traffic in the session)
+    public static final int CODE_MEDIA_NO_DATA = 402;
+    // Media is not supported; so dropped the call
+    public static final int CODE_MEDIA_NOT_ACCEPTABLE = 403;
+    // Unknown media related errors
+    public static final int CODE_MEDIA_UNSPECIFIED = 404;
+
+    /**
+     * USER
+     */
+    // Telephony -> IMS
+    // User triggers the call end
+    public static final int CODE_USER_TERMINATED = 501;
+    // No action while an incoming call is ringing
+    public static final int CODE_USER_NOANSWER = 502;
+    // User ignores an incoming call
+    public static final int CODE_USER_IGNORE = 503;
+    // User declines an incoming call
+    public static final int CODE_USER_DECLINE = 504;
+    // IMS -> Telephony
+    // The call is terminated by the network or remote user
+    public static final int CODE_USER_TERMINATED_BY_REMOTE = 510;
+
+    /**
+     * Extra codes for the specific code value
+     * This value can be referred when the code is CODE_LOCAL_CALL_CS_RETRY_REQUIRED.
+     */
+    // Try to connect CS call; normal
+    public static final int EXTRA_CODE_CALL_RETRY_NORMAL = 1;
+    // Try to connect CS call without the notification to user
+    public static final int EXTRA_CODE_CALL_RETRY_SILENT_REDIAL = 2;
+    // Try to connect CS call by the settings of the menu
+    public static final int EXTRA_CODE_CALL_RETRY_BY_SETTINGS = 3;
+
+    /**
+     * UT
+     */
+    public static final int CODE_UT_NOT_SUPPORTED = 801;
+    public static final int CODE_UT_SERVICE_UNAVAILABLE = 802;
+    public static final int CODE_UT_OPERATION_NOT_ALLOWED = 803;
+    public static final int CODE_UT_CB_PASSWORD_MISMATCH = 821;
+
+
+
+    // For reason type
+    public int mReasonType;
+    // For main reason code
+    public int mCode;
+    // For the extra code value; it depends on the code value.
+    public int mExtraCode;
+    // For the additional message of the reason info.
+    public String mExtraMessage;
+
+    public ImsReasonInfo() {
+        mReasonType = TYPE_UNSPECIFIED;
+        mCode = CODE_UNSPECIFIED;
+        mExtraCode = CODE_UNSPECIFIED;
+        mExtraMessage = null;
+    }
+
+    public ImsReasonInfo(Parcel in) {
+        readFromParcel(in);
+    }
+
+    public ImsReasonInfo(int code, int extraCode) {
+        mReasonType = (int) (code / 100);
+        mCode = code;
+        mExtraCode = extraCode;
+        mExtraMessage = null;
+    }
+
+    public ImsReasonInfo(int code, int extraCode, String extraMessage) {
+        mReasonType = (int) (code / 100);
+        mCode = code;
+        mExtraCode = extraCode;
+        mExtraMessage = extraMessage;
+    }
+
+    /**
+     *
+     */
+    public int getCode() {
+        return mCode;
+    }
+
+    /**
+     *
+     */
+    public int getExtraCode() {
+        return mExtraCode;
+    }
+
+    /**
+     *
+     */
+    public String getExtraMessage() {
+        return mExtraMessage;
+    }
+
+    /**
+     *
+     */
+    public int getReasonType() {
+        return mReasonType;
+    }
+
+    /**
+     * Returns the string format of {@link ImsReasonInfo}
+     *
+     * @return the string format of {@link ImsReasonInfo}
+     */
+    public String toString() {
+        return "ImsReasonInfo :: {" + mReasonType + ", "
+                + mCode + ", " + mExtraCode + ", " + mExtraMessage + "}";
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mReasonType);
+        out.writeInt(mCode);
+        out.writeInt(mExtraCode);
+        out.writeString(mExtraMessage);
+    }
+
+    private void readFromParcel(Parcel in) {
+        mReasonType = in.readInt();
+        mCode = in.readInt();
+        mExtraCode = in.readInt();
+        mExtraMessage = in.readString();
+    }
+
+    public static final Creator<ImsReasonInfo> CREATOR = new Creator<ImsReasonInfo>() {
+        @Override
+        public ImsReasonInfo createFromParcel(Parcel in) {
+            return new ImsReasonInfo(in);
+        }
+
+        @Override
+        public ImsReasonInfo[] newArray(int size) {
+            return new ImsReasonInfo[size];
+        }
+    };
+}
diff --git a/telephony/java/com/android/ims/ImsSsInfo.aidl b/telephony/java/com/android/ims/ImsSsInfo.aidl
new file mode 100644
index 0000000..0ac598b
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsSsInfo.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+parcelable ImsSsInfo;
diff --git a/telephony/java/com/android/ims/ImsSsInfo.java b/telephony/java/com/android/ims/ImsSsInfo.java
new file mode 100644
index 0000000..dbde1c6
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsSsInfo.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Provides the result to the update operation for the supplementary service configuration.
+ *
+ * @hide
+ */
+public class ImsSsInfo implements Parcelable {
+    /**
+     * For the status of service registration or activation/deactivation.
+     */
+    public static final int NOT_REGISTERED = (-1);
+    public static final int DISABLED = 0;
+    public static final int ENABLED = 1;
+
+    // 0: disabled, 1: enabled
+    public int mStatus;
+
+    public ImsSsInfo() {
+    }
+
+    public ImsSsInfo(Parcel in) {
+        readFromParcel(in);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mStatus);
+    }
+
+    @Override
+    public String toString() {
+        return super.toString() + ", Status: " + ((mStatus == 0) ? "disabled" : "enabled");
+    }
+
+    private void readFromParcel(Parcel in) {
+        mStatus = in.readInt();
+    }
+
+    public static final Creator<ImsSsInfo> CREATOR =
+            new Creator<ImsSsInfo>() {
+        @Override
+        public ImsSsInfo createFromParcel(Parcel in) {
+            return new ImsSsInfo(in);
+        }
+
+        @Override
+        public ImsSsInfo[] newArray(int size) {
+            return new ImsSsInfo[size];
+        }
+    };
+}
diff --git a/telephony/java/com/android/ims/ImsStreamMediaProfile.aidl b/telephony/java/com/android/ims/ImsStreamMediaProfile.aidl
new file mode 100644
index 0000000..d648a35
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsStreamMediaProfile.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+parcelable ImsStreamMediaProfile;
diff --git a/telephony/java/com/android/ims/ImsStreamMediaProfile.java b/telephony/java/com/android/ims/ImsStreamMediaProfile.java
new file mode 100644
index 0000000..003499c
--- /dev/null
+++ b/telephony/java/com/android/ims/ImsStreamMediaProfile.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Parcelable object to handle IMS stream media profile.
+ * It provides the media direction, quality of audio and/or video.
+ *
+ * @hide
+ */
+public class ImsStreamMediaProfile implements Parcelable {
+    private static final String TAG = "ImsStreamMediaProfile";
+
+    /**
+     * Media directions
+     */
+    public static final int DIRECTION_INVALID = (-1);
+    public static final int DIRECTION_INACTIVE = 0;
+    public static final int DIRECTION_RECEIVE = 1;
+    public static final int DIRECTION_SEND = 2;
+    public static final int DIRECTION_SEND_RECEIVE = 3;
+
+    /**
+     * Audio information
+     */
+    public static final int AUDIO_QUALITY_NONE = 0;
+    public static final int AUDIO_QUALITY_AMR = (1 << 0);
+    public static final int AUDIO_QUALITY_AMR_WB = (1 << 1);
+
+    /**
+     * Video information
+     */
+    public static final int VIDEO_QUALITY_NONE = 0;
+    public static final int VIDEO_QUALITY_QCIF = (1 << 0);
+    public static final int VIDEO_QUALITY_QVGA_LANDSCAPE = (1 << 1);
+    public static final int VIDEO_QUALITY_QVGA_PORTRAIT = (1 << 2);
+    public static final int VIDEO_QUALITY_VGA_LANDSCAPE = (1 << 3);
+    public static final int VIDEO_QUALITY_VGA_PORTRAIT = (1 << 4);
+
+    // Audio related information
+    public int mAudioQuality;
+    public int mAudioDirection;
+    // Video related information
+    public int mVideoQuality;
+    public int mVideoDirection;
+
+
+
+    public ImsStreamMediaProfile(Parcel in) {
+        readFromParcel(in);
+    }
+
+    public ImsStreamMediaProfile() {
+        mAudioQuality = AUDIO_QUALITY_AMR_WB;
+        mAudioDirection = DIRECTION_SEND_RECEIVE;
+        mVideoQuality = VIDEO_QUALITY_NONE;
+        mVideoDirection = DIRECTION_INVALID;
+    }
+
+    public ImsStreamMediaProfile(int audioQuality, int audioDirection,
+            int videoQuality, int videoDirection) {
+        mAudioQuality = audioQuality;
+        mAudioDirection = audioDirection;
+        mVideoQuality = videoQuality;
+        mVideoDirection = videoDirection;
+    }
+
+    public void copyFrom(ImsStreamMediaProfile profile) {
+        mAudioQuality = profile.mAudioQuality;
+        mAudioDirection = profile.mAudioDirection;
+        mVideoQuality = profile.mVideoQuality;
+        mVideoDirection = profile.mVideoDirection;
+    }
+
+    @Override
+    public String toString() {
+        return "{ audioQuality=" + mAudioQuality +
+                ", audioDirection=" + mAudioDirection +
+                ", videoQuality=" + mVideoQuality +
+                ", videoDirection=" + mVideoDirection + " }";
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mAudioQuality);
+        out.writeInt(mAudioDirection);
+        out.writeInt(mVideoQuality);
+        out.writeInt(mVideoDirection);
+    }
+
+    private void readFromParcel(Parcel in) {
+        mAudioQuality = in.readInt();
+        mAudioDirection = in.readInt();
+        mVideoQuality = in.readInt();
+        mVideoDirection = in.readInt();
+    }
+
+    public static final Creator<ImsStreamMediaProfile> CREATOR =
+            new Creator<ImsStreamMediaProfile>() {
+        @Override
+        public ImsStreamMediaProfile createFromParcel(Parcel in) {
+            return new ImsStreamMediaProfile(in);
+        }
+
+        @Override
+        public ImsStreamMediaProfile[] newArray(int size) {
+            return new ImsStreamMediaProfile[size];
+        }
+    };
+}
diff --git a/telephony/java/com/android/ims/internal/IImsCallSession.aidl b/telephony/java/com/android/ims/internal/IImsCallSession.aidl
new file mode 100644
index 0000000..aa2204e
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsCallSession.aidl
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+import com.android.ims.ImsCallProfile;
+import com.android.ims.ImsStreamMediaProfile;
+import com.android.ims.internal.IImsCallSessionListener;
+
+/**
+ * An IMS session that is associated with a SIP dialog which is established from/to
+ * INVITE request or a mid-call transaction to control the session.
+ * {@hide}
+ */
+interface IImsCallSession {
+    /**
+     * Closes the object. This object is not usable after being closed.
+     */
+    void close();
+
+    /**
+     * Gets the call ID of the session.
+     *
+     * @return the call ID
+     */
+    String getCallId();
+
+    /**
+     * Gets the call profile that this session is associated with
+     *
+     * @return the call profile that this session is associated with
+     */
+    ImsCallProfile getCallProfile();
+
+    /**
+     * Gets the local call profile that this session is associated with
+     *
+     * @return the local call profile that this session is associated with
+     */
+    ImsCallProfile getLocalCallProfile();
+
+    /**
+     * Gets the value associated with the specified property of this session.
+     *
+     * @return the string value associated with the specified property
+     */
+    String getProperty(String name);
+
+    /**
+     * Gets the session state. The value returned must be one of the states in
+     * {@link ImsCallSession#State}.
+     *
+     * @return the session state
+     */
+    int getState();
+
+    /**
+     * Checks if the session is in a call.
+     *
+     * @return true if the session is in a call
+     */
+    boolean isInCall();
+
+    /**
+     * Sets the listener to listen to the session events. A {@link IImsCallSession}
+     * can only hold one listener at a time. Subsequent calls to this method
+     * override the previous listener.
+     *
+     * @param listener to listen to the session events of this object
+     */
+    void setListener(in IImsCallSessionListener listener);
+
+    /**
+     * Mutes or unmutes the mic for the active call.
+     *
+     * @param muted true if the call is muted, false otherwise
+     */
+    void setMute(boolean muted);
+
+    /**
+     * Initiates an IMS call with the specified target and call profile.
+     * The session listener is called back upon defined session events.
+     * The method is only valid to call when the session state is in
+     * {@link ImsCallSession#State#IDLE}.
+     *
+     * @param callee dialed string to make the call to
+     * @param profile call profile to make the call with the specified service type,
+     *      call type and media information
+     * @see Listener#callSessionStarted, Listener#callSessionStartFailed
+     */
+    void start(String callee, in ImsCallProfile profile);
+
+    /**
+     * Initiates an IMS call with the specified participants and call profile.
+     * The session listener is called back upon defined session events.
+     * The method is only valid to call when the session state is in
+     * {@link ImsCallSession#State#IDLE}.
+     *
+     * @param participants participant list to initiate an IMS conference call
+     * @param profile call profile to make the call with the specified service type,
+     *      call type and media information
+     * @see Listener#callSessionStarted, Listener#callSessionStartFailed
+     */
+    void startConference(in String[] participants, in ImsCallProfile profile);
+
+    /**
+     * Accepts an incoming call or session update.
+     *
+     * @param callType call type specified in {@link ImsCallProfile} to be answered
+     * @param profile stream media profile {@link ImsStreamMediaProfile} to be answered
+     * @see Listener#callSessionStarted
+     */
+    void accept(int callType, in ImsStreamMediaProfile profile);
+
+    /**
+     * Rejects an incoming call or session update.
+     *
+     * @param reason reason code to reject an incoming call
+     * @see Listener#callSessionStartFailed
+     */
+    void reject(int reason);
+
+    /**
+     * Terminates a call.
+     *
+     * @see Listener#callSessionTerminated
+     */
+    void terminate(int reason);
+
+    /**
+     * Puts a call on hold. When it succeeds, {@link Listener#callSessionHeld} is called.
+     *
+     * @param profile stream media profile {@link ImsStreamMediaProfile} to hold the call
+     * @see Listener#callSessionHeld, Listener#callSessionHoldFailed
+     */
+    void hold(in ImsStreamMediaProfile profile);
+
+    /**
+     * Continues a call that's on hold. When it succeeds, {@link Listener#callSessionResumed}
+     * is called.
+     *
+     * @param profile stream media profile {@link ImsStreamMediaProfile} to resume the call
+     * @see Listener#callSessionResumed, Listener#callSessionResumeFailed
+     */
+    void resume(in ImsStreamMediaProfile profile);
+
+    /**
+     * Merges the active & hold call. When it succeeds, {@link Listener#callSessionMerged}
+     * is called.
+     *
+     * @see Listener#callSessionMerged, Listener#callSessionMergeFailed
+     */
+    void merge();
+
+    /**
+     * Updates the current call's properties (ex. call mode change: video upgrade / downgrade).
+     *
+     * @param callType call type specified in {@link ImsCallProfile} to be updated
+     * @param profile stream media profile {@link ImsStreamMediaProfile} to be updated
+     * @see Listener#callSessionUpdated, Listener#callSessionUpdateFailed
+     */
+    void update(int callType, in ImsStreamMediaProfile profile);
+
+    /**
+     * Extends this call to the conference call with the specified recipients.
+     *
+     * @participants participant list to be invited to the conference call after extending the call
+     * @see Listener#sessionConferenceExtened, Listener#sessionConferenceExtendFailed
+     */
+    void extendToConference(in String[] participants);
+
+    /**
+     * Requests the conference server to invite an additional participants to the conference.
+     *
+     * @participants participant list to be invited to the conference call
+     * @see Listener#sessionInviteParticipantsRequestDelivered,
+     *      Listener#sessionInviteParticipantsRequestFailed
+     */
+    void inviteParticipants(in String[] participants);
+
+    /**
+     * Requests the conference server to remove the specified participants from the conference.
+     *
+     * @param participants participant list to be removed from the conference call
+     * @see Listener#sessionRemoveParticipantsRequestDelivered,
+     *      Listener#sessionRemoveParticipantsRequestFailed
+     */
+    void removeParticipants(in String[] participants);
+
+    /**
+     * Sends a DTMF code. According to <a href="http://tools.ietf.org/html/rfc2833">RFC 2833</a>,
+     * event 0 ~ 9 maps to decimal value 0 ~ 9, '*' to 10, '#' to 11, event 'A' ~ 'D' to 12 ~ 15,
+     * and event flash to 16. Currently, event flash is not supported.
+     *
+     * @param code the DTMF to send. Value 0 to 15 (inclusive) are valid inputs.
+     * @param duration the interval in milli-seconds between the DTMFs
+     */
+    void sendDtmf(int code, int duration);
+
+    /**
+     * Sends an USSD message.
+     *
+     * @param ussdMessage USSD message to send
+     */
+    void sendUssd(String ussdMessage);
+}
diff --git a/telephony/java/com/android/ims/internal/IImsCallSessionListener.aidl b/telephony/java/com/android/ims/internal/IImsCallSessionListener.aidl
new file mode 100644
index 0000000..f36cf39
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsCallSessionListener.aidl
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+import com.android.ims.ImsStreamMediaProfile;
+import com.android.ims.ImsCallProfile;
+import com.android.ims.ImsReasonInfo;
+import com.android.ims.ImsConferenceState;
+import com.android.ims.internal.IImsCallSession;
+
+/**
+ * A listener type for receiving notification on IMS call session events.
+ * When an event is generated for an {@link IImsCallSession}, the application is notified
+ * by having one of the methods called on the {@link IImsCallSessionListener}.
+ * {@hide}
+ */
+interface IImsCallSessionListener {
+    /**
+     * Notifies the result of the basic session operation (setup / terminate).
+     */
+    void callSessionProgressing(in IImsCallSession session, in ImsStreamMediaProfile profile);
+    void callSessionStarted(in IImsCallSession session, in ImsCallProfile profile);
+    void callSessionStartFailed(in IImsCallSession session, in ImsReasonInfo reasonInfo);
+    void callSessionTerminated(in IImsCallSession session, in ImsReasonInfo reasonInfo);
+
+    /**
+     * Notifies the result of the call hold/resume operation.
+     */
+    void callSessionHeld(in IImsCallSession session, in ImsCallProfile profile);
+    void callSessionHoldFailed(in IImsCallSession session, in ImsReasonInfo reasonInfo);
+    void callSessionHoldReceived(in IImsCallSession session, in ImsCallProfile profile);
+    void callSessionResumed(in IImsCallSession session, in ImsCallProfile profile);
+    void callSessionResumeFailed(in IImsCallSession session, in ImsReasonInfo reasonInfo);
+    void callSessionResumeReceived(in IImsCallSession session, in ImsCallProfile profile);
+
+    /**
+     * Notifiies the result of call merge operation.
+     */
+    void callSessionMerged(in IImsCallSession session,
+            in IImsCallSession newSession, in ImsCallProfile profile);
+    void callSessionMergeFailed(in IImsCallSession session,
+            in ImsReasonInfo reasonInfo);
+
+    /**
+     * Notifies the result of call upgrade / downgrade or any other call updates.
+     */
+    void callSessionUpdated(in IImsCallSession session,
+            in ImsCallProfile profile);
+    void callSessionUpdateFailed(in IImsCallSession session,
+            in ImsReasonInfo reasonInfo);
+    void callSessionUpdateReceived(in IImsCallSession session,
+            in ImsCallProfile profile);
+
+    /**
+     * Notifies the result of conference extension.
+     */
+    void callSessionConferenceExtended(in IImsCallSession session,
+            in IImsCallSession newSession, in ImsCallProfile profile);
+    void callSessionConferenceExtendFailed(in IImsCallSession session,
+            in ImsReasonInfo reasonInfo);
+    void callSessionConferenceExtendReceived(in IImsCallSession session,
+            in IImsCallSession newSession, in ImsCallProfile profile);
+
+    /**
+     * Notifies the result of the participant invitation / removal to/from the conference session.
+     */
+    void callSessionInviteParticipantsRequestDelivered(in IImsCallSession session);
+    void callSessionInviteParticipantsRequestFailed(in IImsCallSession session,
+            in ImsReasonInfo reasonInfo);
+    void callSessionRemoveParticipantsRequestDelivered(in IImsCallSession session);
+    void callSessionRemoveParticipantsRequestFailed(in IImsCallSession session,
+            in ImsReasonInfo reasonInfo);
+
+    /**
+     * Notifies the changes of the conference info. in the conference session.
+     */
+    void callSessionConferenceStateUpdated(in IImsCallSession session,
+            in ImsConferenceState state);
+
+    /**
+     * Notifies the incoming USSD message.
+     */
+    void callSessionUssdMessageReceived(in IImsCallSession session,
+            int mode, String ussdMessage);
+}
diff --git a/telephony/java/com/android/ims/internal/IImsRegistrationListener.aidl b/telephony/java/com/android/ims/internal/IImsRegistrationListener.aidl
new file mode 100644
index 0000000..5f243a0
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsRegistrationListener.aidl
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+/**
+ * A listener type for receiving notifications about the changes to
+ * the IMS connection(registration).
+ *
+ * {@hide}
+ */
+interface IImsRegistrationListener {
+    /**
+     * Notifies the application when the device is connected to the IMS network.
+     */
+    void registrationConnected();
+
+    /**
+     * Notifies the application when the device is disconnected from the IMS network.
+     */
+    void registrationDisconnected();
+
+    /**
+     * Notifies the application when its suspended IMS connection is resumed,
+     * meaning the connection now allows throughput.
+     */
+    void registrationResumed();
+
+    /**
+     * Notifies the application when its current IMS connection is suspended,
+     * meaning there is no data throughput.
+     */
+    void registrationSuspended();
+
+    /**
+     * Notifies the application when its current IMS connection is updated
+     * since the service setting is changed or the service is added/removed.
+     *
+     * @param serviceClass a service class specified in {@link ImsServiceClass}
+     * @param event an event type when this callback is called
+     *    If {@code event} is 0, meaning the specified service is removed from the IMS connection.
+     *    Else ({@code event} is 1), meaning the specified service is added to the IMS connection.
+     */
+    void registrationServiceCapabilityChanged(int serviceClass, int event);
+}
diff --git a/telephony/java/com/android/ims/internal/IImsService.aidl b/telephony/java/com/android/ims/internal/IImsService.aidl
new file mode 100644
index 0000000..bac5651
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsService.aidl
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+import android.app.PendingIntent;
+
+import com.android.ims.ImsCallProfile;
+import com.android.ims.internal.IImsRegistrationListener;
+import com.android.ims.internal.IImsCallSession;
+import com.android.ims.internal.IImsCallSessionListener;
+import com.android.ims.internal.IImsUt;
+
+/**
+ * {@hide}
+ */
+interface IImsService {
+    int open(int serviceClass, in PendingIntent incomingCallIntent,
+            in IImsRegistrationListener listener);
+    void close(int serviceId);
+    boolean isConnected(int serviceId, int serviceType, int callType);
+    boolean isOpened(int serviceId);
+    void setRegistrationListener(int serviceId, in IImsRegistrationListener listener);
+
+    ImsCallProfile createCallProfile(int serviceId, int serviceType, int callType);
+
+    IImsCallSession createCallSession(int serviceId, in ImsCallProfile profile,
+            in IImsCallSessionListener listener);
+    IImsCallSession getPendingCallSession(int serviceId, String callId);
+
+    /**
+     * Ut interface for the supplementary service configuration.
+     */
+    IImsUt getUtInterface(int serviceId);
+}
diff --git a/telephony/java/com/android/ims/internal/IImsStreamMediaSession.aidl b/telephony/java/com/android/ims/internal/IImsStreamMediaSession.aidl
new file mode 100644
index 0000000..459c685
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsStreamMediaSession.aidl
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+/**
+ *
+ * {@hide}
+ */
+interface IImsStreamMediaSession {
+    void close();
+}
diff --git a/telephony/java/com/android/ims/internal/IImsUt.aidl b/telephony/java/com/android/ims/internal/IImsUt.aidl
new file mode 100644
index 0000000..32929ed
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsUt.aidl
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+import android.os.Bundle;
+
+import com.android.ims.internal.IImsUtListener;
+
+/**
+ * Provides the Ut interface interworking to get/set the supplementary service configuration.
+ *
+ * {@hide}
+ */
+interface IImsUt {
+    /**
+     * Closes the object. This object is not usable after being closed.
+     */
+    void close();
+
+    /**
+     * Retrieves the configuration of the call barring.
+     */
+    int queryCallBarring(int cbType);
+
+    /**
+     * Retrieves the configuration of the call forward.
+     */
+    int queryCallForward(int condition, String number);
+
+    /**
+     * Retrieves the configuration of the call waiting.
+     */
+    int queryCallWaiting();
+
+    /**
+     * Updates or retrieves the supplementary service configuration.
+     */
+    int transact(in Bundle ssInfo);
+
+    /**
+     * Updates the configuration of the call barring.
+     */
+    int updateCallBarring(int cbType, boolean enable);
+
+    /**
+     * Updates the configuration of the call forward.
+     */
+    int updateCallForward(int action, int condition, String number, int timeSeconds);
+
+    /**
+     * Updates the configuration of the call waiting.
+     */
+    int updateCallWaiting(boolean enable);
+
+    /**
+     * Sets the listener.
+     */
+    void setListener(in IImsUtListener listener);
+}
diff --git a/telephony/java/com/android/ims/internal/IImsUtListener.aidl b/telephony/java/com/android/ims/internal/IImsUtListener.aidl
new file mode 100644
index 0000000..3f1b5a7
--- /dev/null
+++ b/telephony/java/com/android/ims/internal/IImsUtListener.aidl
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.ims.internal;
+
+import android.os.Bundle;
+
+import com.android.ims.ImsCallForwardInfo;
+import com.android.ims.ImsSsInfo;
+import com.android.ims.internal.IImsUt;
+
+/**
+ * {@hide}
+ */
+interface IImsUtListener {
+    /**
+     * Notifies the result of the supplementary service configuration udpate.
+     */
+    void utConfigurationUpdated(in IImsUt ut, int id);
+    void utConfigurationUpdateFailed(in IImsUt ut, int id, int errorCode);
+
+    /**
+     * Notifies the result of the supplementary service configuration query.
+     */
+    void utConfigurationQueried(in IImsUt ut, int id, in Bundle ssInfo);
+    void utConfigurationQueryFailed(in IImsUt ut, int id, int errorCode);
+
+    /**
+     * Notifies the status of the call barring supplementary service.
+     */
+    void utConfigurationCallBarringQueried(in IImsUt ut,
+            int id, in ImsSsInfo[] cbInfo);
+
+    /**
+     * Notifies the status of the call forwarding supplementary service.
+     */
+    void utConfigurationCallForwardQueried(in IImsUt ut,
+            int id, in ImsCallForwardInfo[] cfInfo);
+
+    /**
+     * Notifies the status of the call waiting supplementary service.
+     */
+    void utConfigurationCallWaitingQueried(in IImsUt ut,
+            int id, in ImsSsInfo[] cwInfo);
+}