[SR-Users] MESSAGE forking bug(?)

[Allen Zhang]

Hi,

I believe there is a bug on MESSAGE forking.

Test scenario:
User A has two records in the location table, with different instance ids: 111 and 222.
One of user A's instance is killed, hence 222 is not reachable.

User B send a MESSAGE to user A.

Kamailio forked the MESSAGE.

Kamailio got a '200 Message delivered' response from 111 and forwarded it to user B.
The MESSAGE forked to 222 timed out. Kamailio send a '408 Time out' to user B.

This violates RFC 3428 section 4. It states that the forking UAS should only send ONE final response to the sender UAC.

Forking is done by t_relay(), and the registrar parameter 'append_branches' is set to default value 1.

Did I do something wrong, or there is a bug?

Regards,
Allen


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