if you want to setup (multiple) bindings, you provide one to-header and (multiple) contact headers. Omitting any contact header will obviously lead to no registration...however, the registrar will send in both cases a response with all current bindings for the Address-of-record
regards, Harry > Am 31.12.2015 um 08:22 schrieb Karthik.v <karthik...@plintron.com>: > > > > Hi , > > > > if contact header is optional in REGISTER request then, multiple TO > header can be sent to register multiple contact ? > > > > As per my knowledge, To header should not be multiple then why it has been > said in RFC 3261 that contact header is optional in Register. > > > > > > Thanks, > Karthik V > > > > > > > > > > > > > > > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors