My Zoiper iOS app works perfectly when connected to any wifi network. I can get incoming calls and make outgoing calls. The problem is when I'm connecting via the cellular (Verizon) data network. I can get incoming calls just fine, but when I try and make an outgoing call (or internal call to another user on the system) the call disconnects after 12 to 15 seconds. I've tried changing a few settings and looking at codec settings to no avail. The quality of the call seems fine until it disconnects.
Have any of you experienced this and found a solution. Thanks!