tree 3b7f1e269b2aec8894284b6412331a2bbaf98d16
parent 96d3afbaae6a9f885e7b9517ca49bf463822302d
author Garik Badalyan <garikb@codeaurora.org> 1439331204 -0700
committer Linux Build Service Account <lnxbuild@localhost> 1472048300 -0600

IMS-VT: Disable upgrade/downgrade if TTY is on.

Upgrade/downgrade is not allowed when TTY is enabled.
A toast message is displayed when user attempts to
upgrade/downgrade the call while TTY is on.

CRs-Fixed: 570918
Change-Id: Ifba57f9b6d80d1fd0e6a60d6cc7b226effa15771