- UDP and TCP transports
- Supports g711, g722, g729, GSM, Speex, iLBC codecs
- Supports sending of DTMF
- Call transfer
- Calling over Wifi and 3G
- Background service (Receiving incoming calls in background)
- High performances
Google Play: https://play.google.com/store/apps/details?id=vn.calls.sip
Youtube Preview:
- Supports g711, g722, g729, GSM, Speex, iLBC codecs
- Supports sending of DTMF
- Call transfer
- Calling over Wifi and 3G
- Background service (Receiving incoming calls in background)
- High performances
Google Play: https://play.google.com/store/apps/details?id=vn.calls.sip
Youtube Preview: