[Serusers] SIP Diversion INVITE Messages
Jan Janak
jan at iptel.org
Mon Nov 24 11:29:45 CET 2003
Check out:
http://cvs.berlios.de/cgi-bin/viewcvs.cgi/ser/sip_router/etc/nathelper.cfg?rev=1.1&only_with_tag=MAIN&content-type=text/vnd.viewcvs-markup
look for the part beginning with onreply_route[1], this is the part that
rewrites 200 OK reponses.
Ser is instructed to use the onreply part by using t_on_reply("1") in
route[1] section.
Jan.
On 24-11 16:50, Stephen Miles wrote:
> Hi all,
>
> We have successfully managed to get Ser to act as a proxy between our
> backend SIP service and clients out on the Internet using the nathelper
> modules and RTP proxying. However, one of the features of our SIP
> service allows you to dial a number via a web interface. This appears
> to work by sending an INVITE from the SIP service out to the IP phone
> using the 'Diversion' and follow-me directives. The problem we appear
> to be having is that the RTP information is setup not in the INVITE but
> rather in an OK status message returned when we pick up the phone to
> dial out. From what I understand Ser does not look inside Status
> messages but only in the initial INVITE, hence when we use the web
> interface to dial out the SDP location is not being altered to point at
> our Ser proxy and therefore the RTP is not being proxied as we want.
>
> We have tried various things but the issue appears to be that Ser will
> not look inside OK replies to INVITE's. We might be misunderstanding
> things here??? By the way all SIP messages are going through the proxy
> as desired... The only issue we have is with the RTP traffic.
>
> Can anybody help us understand how to get around this problem (if in
> fact it is possible to get around it using Ser)
>
> Cheers,
>
> Steve
>
>
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