It has none of the complications of other open softphones and is easy to use.
Editor: LynxPhone is the public version of our softphone built from Bitlynx Technologies services and products. Fully open, you can use the phone on any network. It has none of the complications of other open softphones and is easy to use.

Features:

* SIP signalling
* TLS, S/MIME & SRTP call encryption
* G.711, GSM, Speex, Speex Wideband & G.726-32 Codecs
* NAT detection
* Message-waiting indicator

* Distinctive ringtones
* Customizable skins
* English, German, Spanish, French, Italian, Dutch & Portuguese language support

* Echo cancellation, automatic gain control & voice activity detection
* QOS support (intserve, diffserve, 802.1p)
* Adaptive jitter buffer & packet-loss concealment

* Integrated with Windows Address Book (WAB)
* CallTo & SIP URL support
* Remote-control feature you can free download LynxPhone for Linux 0.6.7 now.