Philippe Gorley authored Jun 11, 2018 and Adrien Béraud committed Jun 15, 2018

For SIP accounts, peer uri contains a well formed sip uri. For Ring
accounts, contains "ring:username" if a registered name is found, else
"ring:ringid".

Change-Id: I55bc46e905adf4cf8fe8ea955a2f9cb13438de7e