tree 771762ab86fa05d00ada4f45069da45d6c0b84e8
parent 5f7bc422f1eac66429449b5541487dd67781a1ef
author SongFerngWang <songferngwang@google.com> 1617199725 +0800
committer SongFerngWang <songferngwang@google.com> 1617711527 +0800

Call waiting support USSD function

-Add USSD function
-Call waiting uses TelephonyManager's get/set methods
Bug: 112177857
Test: build pass. Manual test: set/get call waiting.

Change-Id: Ia03fd4ddef1defb1f0f9091c58ab0f1e43936457