Greetings list,

I am getting hard time to make kamailio perfectly handle cancels request.

I am using http_async_client and MSILO to handle push notifications.

Case 1. When B party record exists in location but it is off-line and I send cancel instantly from Party A while kamailio is sending push to wake B Party up.

modparam("tm", "failure_reply_mode", 3)

modparam("tm", "cancel_b_method", 1)

modparam("tm", "fr_timer", 30000)

modparam("tm", "fr_inv_timer", 120000)

You can see in below picture 407 being generated after some time.

What could be the reason of this problem?

any pointer is much appreciated.

Br, Aqs.