Curious, why not? In principle, if the endpoints support IPv6 for media, why can't that be described in an SDP body transmitted over IPv4?
Is it not the very purpose of the separation of the signaling and bearer plane to be able to enact this kind of functional decomposition between signaling agents and media gateways? -- This message was painstakingly thumbed out on my mobile, so apologies for brevity, errors, and general sloppiness. Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/ On Nov 22, 2011, at 4:25 AM, Brez Borland <[email protected]> wrote: > Hi Michael, > > SIP is signalling, and SDP describes the media session. These are two > separate channels. I can't see SIP being done through IPv4 and media > session over IPv6 to be a problem. This is theory. But can anybody comment > from their experience? > > > Regards, > > Brez > > > On Mon, Nov 21, 2011 at 5:06 PM, Michael Lui (milui) <[email protected]>wrote: > >> Hi experts, >> >> >> >> Is it valid/legal to IPv4 control channel and IPv6 data channel? >> >> For example, the INVITE exchange is in IPv4 but the IP addresses >> specified in SDP is IPv6. >> >> >> >> I don't think this is common but If allow, what is the practical >> scenario? >> >> >> >> Thanks, >> >> Michael >> >> >> >> _______________________________________________ >> Sip-implementors mailing list >> [email protected] >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
