TCALL+ app for iPhone and iPad

TCALL+ is a FREE SIP softphone application for voip calls over 3G or WiFi (IPV4 network only). There are NO ADVERTISEMENTS.

TCALL+ is for private use, and only use with our private servers. It is only used for our clients. It is supported fast way for configuring by servers.

TCALL+ key features include:
- Lowest battery usage with highest reliability / stability
- Lowest latency of all softphones
- Excellent audio quality, even on older devices
- Supports calling over 3G and WIFI (IPV4 network only)
- Multiprotocol with SIP and IAX support, compatible with all RFC
compliant PBXs
- Background / multitasking support
- Native dialer integration
- Integration with the native contact list
- Speakerphone mute and hold
- UDP and TCP transports (use TCP for better battery life!)
- Supports g729, 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
- Call Transfer
- Video support
- ZRTP / TLS support
- Wideband audio