[OpenSIPS-Users] Users Digest, Vol 36, Issue 6

[Jayesh Nambiar]

Thank you Ovidiu. I had assumed that the Custom-Headers parameters works
only for the initial INVITE request. It works as expected. I have another
concern here:
I dont want the "100 Trying" response going out to the call initiator
because I know that "407" is will obviously come from the "Proxy Opensips".
While using t_relay I could have done that using the flags inside the
t_relay function. Is it possible to avoid the "100 Trying" somehow when
relaying the call in B2B mode?
To be honest, I have a web application which initiates the call and expects
a "407" response and then will send the INVITE again with digest
credentials. When that application gets the "100 Trying" response, the
application gets confused :)
Either I will have to tweak the application to just ignore the 100 response
which is little difficult or else find a way to avoid sending 100 response
from opensips. Please Help !!

Thanks in advance.

--- Jayesh


> Try adding your extra headers to the "cusotm_headers" parameter:
> http://www.opensips.org/html/docs/modules/devel/b2b_logic.html#id250014
>
> Regards,
> Ovidiu Sas
>
> On Sat, Jul 2, 2011 at 5:46 AM, Jayesh Nambiar <jayesh.voip at gmail.com>
> wrote:
> > Hi All,
> > I have a following situtation:
> > Sip-Endpoint --> Opensips B2B (with REFER scenario) --> Opensips
> Proxy(Using
> > Proxy Authorize for Authentication) --> PSTN Gateway
> > I need the "B2B Opensips" in between so that it can handle the REFER
> > requests properly. The problem is that the "Proxy Opensips" responds back
> as
> > 407 with Proxy-Authenticate header along with the realm and nonce value;
> but
> > the "B2B Opensips" would only send the 407 response to the Endpoint
> without
> > any Proxy-Authenticate header. Thus the call fails. I cannot authorize
> the
> > Sip-Endpoint on the "B2B Opensips" because of the limitations of my
> > architecture.
> > What I need is, the 407 response gets back to the Sip-Endpoint
> transparently
> > and the response to the same also reaches the "Proxy Opensips" properly,
> so
> > that the proxy authorization becomes successful and the call can go
> through
> > properly.
> > Is there something that can be done on the b2b_response route? Any
> pointers
> > or directions in achieving this will be very helpful !!
> > Thanks in advance.
> > --- Jayesh
> >
>
>
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