Subject: [Sip] SIP and IP multicast

From: Postmann Erwin <[email-masked]>
Date: Wed, 31 Mar 2004 07:50:51 +0200

Dear SIP experts,

I have following questions (maybe already discussed on the list in the past)
regarding the support of multicast within SIP except the usage e.g. for
multicast registration by using "sip.mcast.net".

Is it possible to address a SIP message to a IPv4/IPv6 multicast address
(within the TO Field)?

Is it possible to configure a SIP UA in such a way that it listen to
specific multicast addresses and then receive the message and processes it?

Is it possible to distribute SIP messages via IP multicast mechanisms?

Best regards

Erwin Postmann

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