Hafsa Dialer

Hafsa Dialer is a mobile app for Android. The Hafsa Dialer helps users make international calls easier from an Android phone. The application is free to download.
After downloading and installing the Hafsa Dialer, open the application and follow the simple wizard to set-up the Hafsa Dialer:
Features:
1. VoIP incoming and outgoing call via GPRS/3G/4G or WiFi data service
2. Supported codec: G.729, G.711
3. Support full functional SIP to SIP call with local and remote ring back tone
4. Works behind NAT
5. Can bypass any Firewall
6. Low bandwidth consumption by customized byte saver solution
7. Can bypass SIP blockage
8. Smart echo cancellation technique
9. Synchronization with phone contact
10. On screen call time display
11. On screen balance display
12. Call log of incoming and outgoing calls and, can make call from that log
13. DTMF support (RFC 2833, SIP Info)
14. PLC (Packet Loss Concealment) and VAD (Voice Activity Detection) implemented
15. Works with or without byte saver solution
16. Alert system by local Inbox message or pop-up message