I have a setup where we wanted to just build a android app linphone to SIP-PBX.
But come to find out upon further research due to potential battery drain/background app usage. The device isn’t registered all the time and need some sort of push notification to google firebase back to android
app to re-setup the register / INVITE call.
Is there a module/config of this kind of setup. (now could I use cloud kamailio or would this have to be onsite local to the PBX).