Hallo there, We are using PUSHKIT and CALLKIT for waking up and showing the calls. But I ask for something like a voip background mode here, because a lot of features of our telephone system requiring an instant answer on SIP level. Sometimes with delay for example, so its not possible to use PUSHKIT here.
So my question is: "How can we run a VOIP App in background, so that we can receive and show an incoming call WITHOUT push notifications?"