Your question and the chunk of text you clip below do not line up.
The URIs in your question do not have maddr parameters.
This piece of text from page 240 addresses your question I think:
Note that in the SIPS URI scheme, transport is independent of TLS,
and thus "sips:[EMAIL PROTECTED];transport=tcp" and
"sips:[EMAIL PROTECTED];transport=sctp" are both valid (although
note that UDP is not a valid transport for SIPS). The use of
"transport=tls" has consequently been deprecated, partly because
it was specific to a single hop of the request. This is a change
since RFC 2543.
The important thing to note is that ";transport=tcp" doesn't say
"Don't use TLS". In fact, it says nothing about using TLS at all.
So, in your question:
> What if the Request URI is like this
> sips:[EMAIL PROTECTED]:33445;transport=tcp
>
> and if request is received at def.com on TCP. Should we forward the request on
> TLS??
If the request arrived without using tls, unless you have made a prior
arrangement (exceptional closed network kind of arrangement) with the
sender, you would reject the request.
>
> or
>
> if request is received at def.com on TLS. since transport is TCP......Should we
> forward the request on TCP.
Yes, and you must use TLS over TCP while doing it.
>
> With Regds
> Ajay Kumar
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