MuM+PLUS

Main features
* Excellent voice quality
* High security with call encryption support
* Multitasking support for operation in background

Telephony features
* Support for up to 4 accounts on any SIP-compliant server(Automatic provisioning)
* Integrate contacts from your phone's native contactsdirectory
* Call display and voice-mail indicator
* Transfer to speakerphone, mute and hold functionality
* Call history
* Ringtones and contact avatars
* Dial plan support
* Multiple call support - swap between two active calls, merge andsplit calls, transfer calls
* DTMF via RFC 2833, SIP INFO and in-band
* VPN support
* Automatic codec selection for best call quality
* Supported codecs: G 729, G723, G.711 a/u, G.722 (HD), iLBC, GSM

Advanced features
* Global IP support
* STUN & ICE support
* Noise reduction, echo cancellation and VAD (Voice ActivationDetection)
* Quality of Service
* Security and call encryption via TLS and SRTP
* DNS SRV record look-up
* Call quality statistics

Supported accessories
* Headset with microphone - wired or Bluetooth
* Headphones (without microphone) - device's built-in microphone isused