<re-directed to sip-implementors, which is a better choice for this
question>
There are several points of confusion here.
"Gateway", as most of us understand the term, is a device that connects to
two different kinds of networks. For example, a gateway might connect from
a SIP network to an ISDN network, or from an H.323 network to a SIP network.
A gateway, in SIP terms, is a User Agent, and thus an "endpoint".
A gateway would not, normally, "modify" a sip request, as it would be,
as a User Agent, the originator (or ultimate destination of) a sip request.
A User Agent can choose to use an IP address or a domain name in any
request,
and any other SIP entity should accept either.
So:
Gateways normally wouldn't "modify" a sip request, they can
originate/terminate requests with either IP address or
domain name
Other SIP endpoints (SIP Phones for example) originate or terminate
requests with either IP addresses or domain names
Proxy servers would forward such requests. They should accept
IP addresses or domain names.
Does that answer your question?
Brian
> -----Original Message-----
> From: cthakker [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, October 29, 2003 11:48 AM
> To: [EMAIL PROTECTED]
> Subject: [Sip] IP Address vs Domain name in the from header
>
>
> Hi,
> We are testing out a SIP proxy which can accept requests from a SIP
> gateway or SIP endpoints.
> Should the INVITE sent by the SIP gateway be any different
> from the one
> sent by SIP endpoints ? (It seems that the proxy accepts
> requests from a
> gateway only if the from header is of the form -
> <sip:[EMAIL PROTECTED]> and
> it accepts requests from end points only if it is of the form
> <sip:[EMAIL PROTECTED]:port>) Is this behaviour valid ?
> Is there any document that explains how a gateway may modify the
> request before forwarding it to the SIP Proxy ?
>
> Thank you in advance,
>
> Chintan
> ipNetFusion Inc,
> Dallas TX
>
>
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