Main features:
- HD audio and rich codec support: Opus, SILK, G.729, G.711, Speex, iLBC, GSM
- Echo cancellation
- Microphone gain and speaker volume adjustments
- Secure communication with TLS and Secure RTP (SRTP) or ZRTP encryption protocols
- Push notifications for incoming calls to improve your battery life
- Support for NAT traversal using ICE with STUN or TURN protocols
- Support for multiple SIP accounts
- Presence using the SIMPLE standard with generic SUBSCRIBE/NOTIFY and PUBLISH messages
- Very intuitive UI
- Contact list integrated with primary account contact list
- Detailed call list and history
- Integrated billing information including balance, call rates, charges and payments
- Easy balance top-up using Google Play
- Account wizard to create or restore SIP account at any VoIP provider
Can be used with any SIP provider
- Application debugging
