[Sip] SIP de-REGISTER: Expires header vs expires parameter i Contact

"Gert Olsson" <gert.olsson@ericsson.com> Tue, 20 January 2009 12:26 UTC

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Thread-Topic: SIP de-REGISTER: Expires header vs expires parameter i Contact
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From: Gert Olsson <gert.olsson@ericsson.com>
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Subject: [Sip] SIP de-REGISTER: Expires header vs expires parameter i Contact
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Hi,

SIP de-registration is performed by sending a REGISTER message with
either a Contact header containing an 'expires=0' parameter or an
Expires header with value 0. My question is: is it FORBIDDEN to have
both? Shouldn't any decent server, if it has found 'expires=0' in the
Contact header (or in all if many), just happily ignore an Expires
header?

br

/GO
__________________________________________________________________|
Gert Olsson   /  phone: +46 10 7154604   /  e-mail:
gert.olsson@ericsson.com
Ericsson AB - Business Unit Mobile Platforms, SE-221 83  Lund, Sweden


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