I did that from a totally different perspective: CTCallCenter gives you a callback-block for call events. Each time a GSM call is established or terminated, your code is executed. I simply put my current VoIP call on hold, when a GSM call starts and reinvite my VoIP call, when the GSM call ends. The SIP-Server is then responsible for playing something to the other VoIP party (usually a nice female voice stating: "Please hold the line ..."). Was easy and worked for me. Sebastian. pjsip-bounces at lists.pjsip.org schrieb am 18.08.2011 14:45:31: | I am trying to handle interruptions by incoming GSM call in my | iPhone application when i am on a VoIP call.
