Great SIP client
We use Blink Pro as the primary soft phone for our call center and we love it. The interface is very "Mac" and intuitive to use and doesnt get in your way. It has all the features you would expect of a professional SIP client and maybe some you wouldnt! Multiple calls, transfers, and conferences are all handled elegantly and smoothly. It worked out of the box with our existing SIP server, and the free sip2sip.info service is also a great perk.
The developers are very responsive both on the mailing list and with direct support questions. I have seen both bug fixes and new features added to the program as the result of user requests, and updates are made available quickly and regularly. Two relatively new features I really like are the speech announcement of incoming calls and the ability to save post-dial sequences (ie touch tone menu navigation) with contacts.
Yzrelb about
Blink Pro