[OpenSIPS-Users] Opensips and 100rel

Jon Bonilla (Manwe) manwe at aholab.ehu.es
Mon Jun 28 11:25:31 CEST 2010

El Mon, 28 Jun 2010 10:59:00 +0200
Iñaki Baz Castillo <ibc at aliax.net> escribió:

> 2010/6/28 Jon Bonilla <manwe at aholab.ehu.es>:
> > - Nortel uses "Allow" instead of "Supported", so the 100rel string must be
> >  erased in that header also.
> "100rel" in the Allow header ????:

No. PRACK in the "Allow" header. I was mistaken on that. I had to erase PRACK
from there.

> > - Some vendors use "PRACK" instead of "100rel", so I had to find that string
> >  also to completely disable this beahaviour.
> PRACK is the name of the SIP method, 100rel is the name of the whole
> extension including the mechanism to negociate the usage (or not) of
> PRACK method to confirm provisional responses.

I have seen different gw using "100rel" or "PRACK" in the "Supported" header.
Just looking for 100rel didn't work. That's why I had to find both "100rel" and
"PRACK" strings to disable it's usage.

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