The 3CX Softphone and X-lite ran neck to neck in this most popular-to-date survey we'ved run with 3CX inching just a little ahead in the end. All other softphone seems to have an inconsequential amount of votes. What do people like about these phones?
-Integrates tightly with the 3CX Phone System
-Integrates with the 3CX Call Assistant
-Incoming call pop capability
-The iPod like interface?
-Product has been around
-SIP Instant Message client built right into the softphone
-Standard SIP Presence right on the softphone
Also here is an article about 20 Free SIP Softphones!
Thanks for all your input!