[VoiceOps] Broadsoft / 3CX SIP Trunks

[Jon Radel]

On Sep 25, 2012, at 17:36, Alex Balashov <abalashov at evaristesys.com> wrote:

> According to very unambiguous directives from the pertinent RFCs, all routing should always be done based on the Request URI / INVITE request line.  The To header should NEVER be used for routing (in >= 3261).  It is a purely cosmetic commentary on the intended logical endpoint of the call.
> 

True de juris. All over the map de facto. At least judging from some of my vendor's offerings. 

And to respond to the original question, while I have no experience with your endpoint, that is generally the point at which I start doing header rewrites on the Acmes. I find it easier than arranging for a meeting of the minds between the two+ vendors involved. 

--Jon Radel