X-Lite

Launching it tells me it is broken and must be moved to the trash.

This makes absolutely no sense at all and is highly unlikely...

How many years does it take to add access to the native OS X Contacts?! *facepalm* This simple addition would dramatically improve the usefulness of this app!

4.5.2 is out...

Yep, proper screenshot is this: http://www.counterpath.com/assets/images/831/x-lite-5-mac.png

Standard Telephone Features The CounterPath X-Lite 5 for Mac softphone has all standard telephone features, including: • Call display and Message Waiting Indicator (MWI). • Speakerphone and Mute. • Redial, Hold, Do Not Disturb. • Call history – list of received, missed, and dialed calls. • Three-party conferencing. Enhanced Features and Functions X-Lite for Mac also supports the following features and functions: • Video. • Managed contact list. • Automatic detection and configuration of audio and video devices. • Acoustic echo cancellation, automatic gain control, voice activity detection. • Support for the following audio codecs: Broadvoice-32, Broadvoice-32 FEC, DVI4, DVI4 Wideband, G.711aLaw, G.711uLaw, GSM, iLBC, L16 PCM Wideband, Speex, Speex FEC, Speex Wideband, Speex Wideband FEC. • Support for the following video codecs: H.263, H.263+ 1998. • Automatic selection of the best codec based on the other party’s capability, the available bandwidth, and network conditions. X-Lite switches the codec within a call in response to changing network conditions. • Compliance to 3261 SIP standard. • STUN and ICE NAT traversal. • Support for DTMF (RFC 2833, inband DTMF). SoftPhone.com Features If you have a SoftPhone.com account, the following features are also available: • Presence via your SoftPhone.com account. You can see the presence of any contact who also has a SoftPhone.com account. • IM via your SoftPhone.com account. You can send IMs to any contact who has a SoftPhone.com account. For more information on SoftPhone.com and its features, see www.softphone.com.