[SR-Users] append_hf to CANCEL
klaus.mailinglists at pernau.at
Wed Nov 20 21:34:23 CET 2013
A hack would be to loop the CANCEL to Kamailio again and forward it then
stateless. When forwarding the CANCEL stateless, you can add headers.
Am 20.11.2013 15:19, schrieb Grant Bagdasarian:
> I see, so there is no way to append a header to the CANCEL created by Kamailio?
> I tried the onsend_route and branch_route, but none of them worked.
> -----Original Message-----
> From: sr-users-bounces at lists.sip-router.org [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Alex Balashov
> Sent: Wednesday, November 20, 2013 3:09 PM
> To: sr-users at lists.sip-router.org
> Subject: Re: [SR-Users] append_hf to CANCEL
> On 11/20/2013 09:05 AM, Grant Bagdasarian wrote:
>> Does append_hf not work for CANCEL requests?
> Correct: CANCEL is a "hop-by-hop" request where the proxy is a distinct hop, i.e. UAC sends a CANCEL to the proxy, and the proxy sends a separate CANCEL of its own on the branch that it initiated. This is in contrast to something like a BYE, and most requests, which are end-to-end request that the proxy simply relays upstream as received.
> -- Alex
> Alex Balashov - Principal
> Evariste Systems LLC
> 235 E Ponce de Leon Ave
> Suite 106
> Decatur, GA 30030
> United States
> Tel: +1-678-954-0670
> Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users at lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
More information about the sr-users