I think you are right!
Though the RFC doesn't specify, semantically it wont make sense to change it.
Somesh S Shanbhag
Mascon Global Limited
-----Original Message-----
From: [EMAIL PROTECTED] on behalf of Jagan Mohan
Sent: Fri 8/22/2008 10:33 AM
To: SIP Implementors
Subject: [Sip-implementors] Change of Allow header content within a dialog
Hi All,
I would like to know whether the content (SIP Methods supported) of Allow
header can change within a dialog.
For example, can 100 Trying message have "Allow: INVITE ACK BYE CANCEL
OPTIONS UPDATE" and
180 Ringing message have "Allow: INVITE ACK BYE
CANCEL OPTIONS" in the same dialog?
I don't see any specific mention of this in RFC 3261. Logically, I feel
the behavior of UA sending the above messages is not correct.
Thanks,
Jagan
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
EMAIL DISCLAIMER : This email and any files transmitted with it are
confidential and intended solely for the use of the individual or entity to
whom they are addressed. Any unauthorised distribution or copying is strictly
prohibited. If you receive this transmission in error, please notify the sender
by reply email and then destroy the message. Opinions, conclusions and other
information in this message that do not relate to official business of Mascon
shall be understood to be neither given nor endorsed by Mascon. Any information
contained in this email, when addressed to Mascon clients is subject to the
terms and conditions in governing client contract.
Whilst Mascon takes steps to prevent the transmission of viruses via e-mail, we
can not guarantee that any email or attachment is free from computer viruses
and you are strongly advised to undertake your own anti-virus precautions.
Mascon grants no warranties regarding performance, use or quality of any e-mail
or attachment and undertakes no liability for loss or damage, howsoever caused.
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
