It available at:
(Sorry about the low volume, I'll do better next time.) Please let a comment below if you have a suggestion about 3CX recommended equipment you would like to see a video review on. Also, please rate review on YouTube after you watch it.
Also note that the 3CX Voipclient is a free, business oriented SIP softphone. It will work with any other IP PBX that uses open SIP standards.