Basic4Android (currently known as B4A, https://www.b4x.com/b4a.html) is a rapid application development tool for native Android applications. B4A is similar to Visual Basic and Visual Basic.Net though it is adapted to the native Android environment.
B4A allows to build a custom SIP softphone for Android 2.3.x, 4.x, 5 with support of voice and video calls
Features:
- Android 2.3.x, 4.x, 5,6
- Support of SIP and RTP
- UDP/TCP support
- secure connection via SRTP
- STUN
- SIP Registrar (SIP server) support
- Audio and video calls
- DTMF
- Status messages
- User Agent name support
- SIP port change
- Available SIP port check
- Bluetooth support
- Different networks support (WiFi, GPRS, 3G, EDGE, LTE)
- Registration proxy support
- Log support
End User Features:
- Set a custom ringtone
- Use softphone without registration (useful for calls in local network)
- Communicate via IM chat
- Play File to conversation
- Put a call on Hold
- Record a Call
- Enable/disable Video, Microphone and Speaker during the call
If you are interested in VoIP SIP SDK for B4A please contact us sales@voipsipsdk.com