[SR-Users] Proxy for ACK

Juha Heinanen jh at tutpro.com
Sat May 7 09:37:13 CEST 2022


Rick van Rein writes:

> RFC 3261 gives (by way of example) an ACK that is sent directly to a remote
> phone via its Contact: header address.  Is this the _only_ way of doing
> this, or may ACK also be passed through a SIP proxy?

If your Kamailio adds Route header to INVITE, ACK will be routed based
on that instead of Contact URI.

-- Juha



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