On Fri, Sep 30, 2016 at 5:38 PM, Alex Balashov <abalas...@evaristesys.com> wrote:
> On 09/30/2016 03:52 PM, Roman Shpount wrote: > > As far as Via is concerned, the better and standard compliant >> practice is to encode any application specific data in VIA tag >> parameter using some sort of proprietary encryption scheme. It is >> guaranteed that Via tag will be returned to the proxy unmodified. >> > > That might conflict with the requirement that the branch parameter be a > GUID. > > It's less important for transaction-identifying GUIDs than for something > like Call-ID, but still. Via branch parameter is the transaction identifying parameter. Its format and contents are implementation specific. There is no requirement for Via branch (or SIP Call-ID for that matter) to be a GUID. All that is required is that these parameters were unique. Regards, _____________ Roman Shpount _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
