The IP MVPN app is a SIP VoIP softphone only for SaveComs enterprise customers.It allows mobile users to make VoIP calls over 3G and WiFi.
Features:
1. Excellent VoIP quality support iLBC、
GSM、G.711 Codec
2. Contacts Integration
3. Dial from Call Logs
4. Call Mute and Loudspeaker
5. Support RFC2833 DTMF