Hi,
think the scenario below:
+--------+ +----------+ +---------+
| User A |--------->| Proxy |-------->|PSTN-GW |
+--------+ +----------+ +---------+
User A is a sip phone ,and he want to call a PSTN phone, User A belongs to Proxy.
User A forms the INVITE request this way :
INVITE sip:123456@Proxy;user=phone SIP/2.0 <-- can not be "123456@PSTN-GW"
Via:..... User A has no information
about
From: User A@Proxy PSTN-GW
To:123456@Proxy <------ "123456@Proxy" too
.........
Right ?
Best Regard.
>It can use the same URI as the Request-URI.
>
>cheers,
>(-:bob
>
>Robert F. Penfield
>Chief Software Architect
>Acme Packet, Inc.
>130 New Boston Street
>Woburn, MA 01801
>[EMAIL PROTECTED]
>
>----- Original Message -----
>From: "feng zhang" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Wednesday, August 14, 2002 8:24 AM
>Subject: Re: [Sip-implementors] SIP uri for phone numbers
>
>
>> Hi,
>>
>> But how to determine "To URL" in the INVITE request?
>>
>> like this: To: 1234567@GW;user=phone
>>
>> Best Regard
>>
>> >The hostname of the Request-URI should be the domain of the proxy since
>the
>> >proxy is suppose to know how to route the call. The rules for proxies in
>RFC
>> >3261 state that when the proxy is not responsible for the domain in the
>> >Request-URI, it is suppose to forward it to the domain indicated in the
>> >Request-URI.
>> >
>> >----- Original Message -----
>> >From: "Andreas Bystr�m" <[EMAIL PROTECTED]>
>> >To: "Sip Implemators" <[EMAIL PROTECTED]>
>> >Sent: Wednesday, August 14, 2002 12:35 PM
>> >Subject: [Sip-implementors] SIP uri for phone numbers
>> >
>> >
>> >> I'm wondering if there are some recomendations how the sip address for
>the
>> >> TO-field should look like when making a call to PSTN. The environment
>> >looks
>> >> like :
>> >>
>> >> Terminal A -> Proxy -> GW
>> >>
>> >> and the user on terminal A is dialing the PSTN number 1234567. How
>should
>> >> the TO sip uri look like after the '@'? Should I insert my own ip
>number,
>> >> the ip of the Proxy, the ip of the GW or something else?. The terminal
>is
>> >> somewhat stupid and don't really know that this call should be
>forwarded
>> >to
>> >> the GW, it is up to the proxy to decide. The user has entered the phone
>> >> number 1234567 instead of an sip address when placing the call.
>> >>
>> >> Thanks in advance,
>> >>
>> >> Andreas
>> >>
>> >> ____________________________________
>> >> Andreas Bystr�m
>> >> Computer Engineer
>> >>
>> >> e-horizon Streaming Technologies
>> >> Stadshusplatsen 2, 4th floor
>> >> Box 172
>> >> SE 14922 Nyn�shamn
>> >>
>> >> mail : [EMAIL PROTECTED]
>> >> web : www.e-horizon.se
>> >> phone : +46 8 524 201 80
>> >> mobile: +46 708 85 23 35
>> >> ____________________________________
>> >>
>> >> _______________________________________________
>> >> Sip-implementors mailing list
>> >> [EMAIL PROTECTED]
>> >> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>> >>
>> >
>> >_______________________________________________
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>> >.
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>
>
>.
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