Moving to sip-implementors since this question should be handled there.
Multicast is deliberatelly underspecified in SIP because it might leadto wrong
behaviour in the FSMs of the UA{C|S}.
Multicast is only mentioned in RFC3261 and I have not seen any otherietf
document about broadcast...
Section 10.2.6 Discovering a RegistrarRFC3261 only mentions one goal: to
discover a registrar by sending amulticast REGISTER request to the sip
multicast address 224.0.1.75(check Section 10.2.6 Discovering a
Registrar).RFC3261 also incorporated the ;maddr header parameter which
hasspecial treatment in the routing.
Personally I would discourage the use of multicast|broadcast but ifyour
requirements force you to use it, don't expect much compliancywith other SIP
equipment.
Hope it helps.Samuel.
2006/11/3, sakura210 <[EMAIL PROTECTED]>:> hello> I am a new comer in the
field of SIP and having some trouble in getting> the drafts or other papers
about "multicast or broadcast in SIP".> Could you tell me where to get the
sources on the title? I am learning> how multicasting works in SIP now,and so
eager to study this principles.> Thank you for reading my words.I am
looking forward to hearing from you.>> vivi>>>>>>>
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