[SR-Users] header manipulation in locally generated SIP OPTIONS requests

[Klaus Feichtinger]

Hello,

does kamailio offer any possibility for adding / replacing SIP headers in
locally built SIP requests? In detail: SIP OPTIONS requests that are built by
the DISPATCHER module for probing the configured targets. I have to extend these
messages with "Accept" SIP header fields (which are marked with m* in RFC3261 -
so they SHOULD be present), as the dispatcher target is requiring this
information for answering these requests....

The event_route is principally accepting the append_hf() function and is adding
the configured header fields. But the answer to that request (which is including
these additional header fields) is confusing the dispatcher module. Dispatcher
module is reacting with this ERROR message:
DEBUG: dispatcher [dispatch.c:2406]: probing set #1, URI sip:10.10.10.10
DEBUG: dispatcher [dispatch.c:2345]: OPTIONS-Request was finished with code 500
(to , group 1)
ERROR: dispatcher [dispatch.c:2358]: Setting the state failed (, group 1)

When I comment the textops functions out again and use the original OPTIONS
messages, dispatcher is happy and knows the states of the probed targets.

Therefore, I´ll ask again: does kamailio offer any way for manipulating locally
built SIP requests?

kr
Klaus
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