We require a sip soft-phone App to connect to our platform for our customer to use.
The app will need to support;
(1) SIP Voice and Video Calls;
(2) IM Presence and SMS via SIP or SMS Gateway either;
(3) Most Video/Audio codecs, including Speex, g729 and other video codecs.
(4) Ability to pull some user information from server to populate fiel...
Skills: android, asterisk, voip software, ios development, a2billing