Hi Thomas, did you try the "on_incoming_call" callback from the pjsua_callbacks? Take a look here: http://www.pjsip.org/pjsip/docs/html/structpjsua__callback.htm Kind regards, Paul Am 22.06.2012 22:28, schrieb Tom Merriewether: > I am using the pjsua package and need to register to get a callback > every time the stack receives an incoming message. > How do I do this? I need to count the number and frequency of > incoming messages when my iPhone app is in the background. > Any pointers on how to do this would be greatly appreciated. > > TIA > > -- > Thomas Merriewether > Star2Star Communications > >