Counterpath (www.counterpath.com) put out X-Lite 4.0 last week, it’s entry-level voice and video softphone for the Mac and Windows PCs.
Available free (yes, free) via download, CounterPath says X-Lite 4.0 has built on a year’s worth of beta user feedback, adding a new user interface to provide a choice between a contact-centric experience, a dialpad-centric experience, or a combination of the two.
Other major features include IM and presence using the SIMPLE protocol, auto detect and config of audio devices, support for a wide range of codecs, acoustic echo cancellation, auto gain control and voice-activity detection, HID support, and STUN and ICE NAT traversal.
X-Lite 4.0 is designed to be a stepping stone (i.e. get the free, love it, go buy the paid version) to Bria 3.