Re: [Sip] Re: [Simple] -05 MESSAGE and Expires header

["Vijay K. Gurbani" <vkg@lucent.com>]

Sean Olson wrote:
[...]
  > I don't see how "Expires: 0" could be used to
  > retract an instant message.

It can't right now; and there aren't any requirements for it
either.  However, by using 'Expires: 0' to mean immediate delivery
now, we may be closing the door on using it for retraction in the
future.  I am of the opinion that there is another header which can
provide immediate delivery (maybe not a best fit, but all the same, an
alternative to overloading 'Expires: 0').

Thanks,

- vijay
-- 
Vijay K. Gurbani  vkg@{lucent.com,research.bell-labs.com,acm.org}
Wireless Networks Group/Internet Software and Services
Lucent Technologies/Bell Labs Innovations, 2000 Lucent Lane, Rm 6G-440
Naperville, Illinois 60566     Voice: +1 630 224 0216











_______________________________________________
Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors@cs.columbia.edu for questions on current sip
Use sipping@ietf.org for new developments on the application of sip