On Sun, 2008-01-06 at 18:36 -0500, Raj Jain wrote: > We've a situation where tens or potentially hundreds of Contact > addresses need to be bound to an AoR. Don't ask me why - it is an > outcome of putting SIP in a large legacy switching system. > > While allowed by SIP, it would seem somewhat awkward to send hundreds > of Contact URIs in a SIP REGISTER message in a practical sense. > Furthermore, it would be seriously detrimental to Registrar's > performance if hundreds of UACs start sending hundreds of Contact URIs > in their REGISTER messages all at once (for instance, at system start > up). > > One way to solve this problem would be to pre-configure the Registrar > with the Contact addresses using some out-of-band mechanism. The > REGISTER message can then be used to turn the bindings on or off as > opposed to carrying the bindings in it. Assuming that such an > out-of-band mechanism for pre-configuring the Registrar exists, the > question then would be what should we send in the Contact header in > the REGISTER message.
If using such an oob mechanism is acceptable, why use REGISTER at all? There is no rule that requires that all AOR->contact mappings be established using REGISTER. A redirect server is free to do that mapping using any mechanism at all. -- Scott Lawrence tel:+1.781.229.0533;ext=162 or sip:[EMAIL PROTECTED] sipXecs project coordinator - SIPfoundry http://www.sipfoundry.org/sipXecs CTO, Voice Solutions - Bluesocket Inc. http://www.bluesocket.com/ http://www.pingtel.com/ _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
