Hi, now that many SIP endpoints are mobile devices which usually deep-sleep, and only get awake after Android/iOS own notification messages awake them, what are the best practices

to await a a pending INVITE to such a mobile device until it REGISTER after the awake?

I currently use a Asterisk a do a simple loop, trying new INVITES every second, but this is not elegant.

A nice solution would be a type of queue, where the pending INVITE get send to the new location triggered immediately

by the fresh REGISTER from that device to avoid any delay during call setup

Kristijan