[SR-Users] CANCEL with Totag

Alex Balashov abalashov at evaristesys.com
Tue Nov 23 19:14:16 CET 2010


Iñaki,

On 11/23/2010 12:59 PM, Iñaki Baz Castillo wrote:

> Really ugly. Actually those CANCEL's are  being rejected by my
> kamailio (403) as they contain Totag but no Route header.

Are you saying that if not for this security check, Kamailio would match 
the CANCELs to the INVITE transaction to which they are intended to 
correspond?

This should not happen;  in order for CANCELs to be matched, they must 
have the same attributes, tag-wise, as the initial INVITE to which they 
correspond.

-- Alex

-- 
Alex Balashov - Principal
Evariste Systems LLC
1170 Peachtree Street NE
12th Floor, Suite 1200
Atlanta, GA 30309
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/



More information about the sr-users mailing list