On Fri, Sep 30, 2016 at 2:28 PM, Alex Balashov <abalas...@evaristesys.com> wrote:
> Yeah, but as I understand it, the spec is more explicit on arbitrary > parameters in the Route set than in Via. > > Route is where I'd expect the state to go in this case, too—it's where all > other state goes. But the implementors went with custom Via parameters > instead. The issue is that responses to SIP request (especially error responses to the dialog creating INVITE) do not always contain Route or Record-Route headers. The only way to store application specific data which is needed to forward such SIP responses is in the Via generic parameter. Regards, _____________ Roman Shpount _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
