Show callback numbers when appropriate

When a callback number is set, make the decision about when (and how)
to show it to the user. The number is shown when it's different than
the user's known line 1 number. If the call is placed to an emergency
service, then make sure the user knows that.

Bug: 13333595
Change-Id: I0d3b2cfcea08aeba760c392c116303f21beb70d3
3 files changed
tree: 138224f84c1781a10d674d3199ad0fe5518d69a6
  1. InCallUI/