tree c4068841a68cc2b6459bb604ef1dfb8d75fd4389
parent 8fec2b2ab0b279c0bcae6dece327ca24f3af4d25
author Santos Cordon <santoscordon@google.com> 1455661433 -0800
committer Santos Cordon <santoscordon@google.com> 1456416933 -0800

Prevent adding a new CDMA call if know it will fail.

See code change for additional comments.

The same CDMA command is used for merging two calls, swapping between
two calls, and adding a new call on CDMA devices. The actual function of
the command depends on the context. Instead of issuing an 'add-call'
when we know the function will do something different given the
context, send back a more meaningful error.

Bug: 22850789
Change-Id: I45b51b15f3ef2f144411db5df86536704bd1201d