[SR-Users] Kamailio with APNS

Duong Manh Truong ngoahotanglongbk at gmail.com
Tue Jul 24 06:02:27 CEST 2012

Hi list,

My team are developing a SIP client for mobile running iOS ,

then having to deal with the "back ground mode" problem while this soft is
installed on mobiles

One of the solutions is using APNS. (Apple Push Notification Service)

I wanna to use Kamailio as SIP Redirect / Proxy for my current SIP server

The model is like that:

User A <---------> Kamailio  <---------> SIP server <--------> User B

IF UserA call UserB, UserB is not available now (not registered yet),
normally, SIP server will reply Kamailio with "404 Not found"

In that case, i want to set up Kamailio do the communication with APNS and
waiting  for UserB "Wake up" then RESEND the Invite message ......
(instead of forwarding this 404 message to UserA)

I am getting stuck at how Kamailio can control "404 Not found" message
which it receives from SIP server .

I do searching around several days but still can not get any clearer

Please help me with some instruction/ configuration of Kamailio for this
case !

Thank you very much.
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