Is it possible to have a 3rd party softphone client (eg. Bria ) running on an iPhone/iPad for CUCM that uses WIFI and 3G? I'm fairly certain it is but unsure what I'd need to test it in my lab? I have CUCM 8.6 and can test the WiFi but what will I need to test the 3G? I'm reluctant to buy it until I understand the requirements. Are there any free SIP mobile clients that can do video and work with CUCM too?