19 Dec
2021
19 Dec
'21
7:47 a.m.
Yes, I agree with you, This is an exception related to 401(Unauthorized)
and 407 (Proxy Authentication Required) responses.
In these situations, The CSeq header field value should be incremented.
On Sat, Dec 18, 2021 at 7:00 PM Juha Heinanen <jh(a)tutpro.com> wrote:
Henning Westerholt writes:
--
-With Best Regards
*-- Mojtaba Esfandiari.S*
*-- Ph.D. student and Research Affiliate, *
*-- Technical Manager at IP-PBX Laboratory, Ferdowsi University of Mashhad,
Iran.*
-- Mobile: +98-915-117-6713
I think in this particular case (SIP
authentication) this is not
correct (RFC 3261, 22.2):
"When a UAC resubmits a request with its credentials after receiving a
401 (Unauthorized) or 407 (Proxy Authentication Required) response,
it MUST increment the CSeq header field value as it would normally
when sending an updated request."
OK then, reference to this exception should have been included in
section 8.1.1.5.
-- Juha