WiFi PA app for iPhone and iPad

Application features include:

- Support for different color schemes
- Bluetooth support
- Low latency
- Excellent audio quality
- Supports calling over 3G and WIFI
- Multiprotocol with SIP and IAX support, compatible with all RFC
compliant PBXs
- Background / multitasking support
- Speakerphone mute and hold
- UDP and TCP transports (use TCP for better battery life!)
- Supports g711 (ulaw, alaw), speex, iLBC and gsm codecs
- Supports sending of DTMF
- DNS SRV
- Built-in echo cancellation
- STUN support
- Change ringtone per account
- Call waiting
- Video support
- ZRTP / TLS support
- Call Transfer
- Wideband audio