[sr-dev] registrar module and reg-id Contact-URI parameter

[Juha Heinanen]

Peter Dunkley writes:

> Specifically, if the Path: header is missing from the REGISTER request or
> the first Path: does not contain the ;ob URI parameter:
> 1) If the REGISTER contains a Supported: header with the outbound option
> tag and the Contact-URI contains a reg-id parameter the registrar must
> reject the REGISTER with 439 First Hop Lacks Outbound Support.
> 2) If the REGISTER does not contain a Supported: header with the outbound
> option tag then the reg-id parameter must be ignored.

the above applies only if the registrar is not the first hop, i.e., if
via header indicates that there was a proxy between the ua and
registrar.

-- juha