[DO NOT MERGE] Revert "Skip TC as some network operators disallows editing VoiceMailNumber" This reverts commit 6e81ebb4ff3e6f7f5f998b1a3400aa16bd906eda. Reason for revert: 270220336 Change-Id: Ia6cb7fb8c3a57d58941659ffd017079d86f795f5