Hi, you can watch this presentation for an introduction to mobile pushes and a simple way of approaching them. For a more standard approach you can have a look at this recent RFC: https://tools.ietf.org/html/rfc8599 about push notifications with SIP. Best regards, Federico On Sun, Aug 23, 2020 at 7:56 AM Johnny Ritzer &lt;sudoritz(a)gmail.com <mailto:sudoritz@gmail.com>> wrote: 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). _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users