Thanks Brett. Is one correct and one not or does it not matter as long  
as they both match?

Regards
Andrew

Sent from iPhone

On 5 Jan 2009, at 22:46, "Brett Tate" <[email protected]> wrote:

> There is a user=phone issue within the 180's To header.  It is inside
> the brackets for INVITE; it is outside for 180.
>
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On
>> Behalf Of Andrew Wood
>> Sent: Monday, January 05, 2009 5:39 PM
>> To: [email protected]
>> Subject: [Sip-implementors] 180 being ignored by phone
>>
>> Im trying to implement a simple forking proxy server.
>> In the example below the calling phone (200) is on
>> 192.168.254.1 The called phone (201) is on 192.168.254.2 The
>> proxy is at 192.168.254.254
>>
>> Following is the Invite received by the proxy from the
>> caller, and the 180 which the proxy sends back to the caller.
>> The phone rings, and the 180 is modified and forwarded back
>> but  the caller doesnt get a ring tone.
>> Ive checked them over and over and cant see whats wrong with them.
>>
>> Am I overlooking something here?
>>
>> Thanks for any help
>>
>> Andrew
>>
>>
>> INVITE sip:[email protected];user=phone SIP/2.0
>> Via: SIP/2.0/UDP 192.168.254.1:5060;branch=z9hG4bK1db88668c5d780ae
>> Contact: <sip:[email protected]:5060;user=phone;transport=udp>
>> To: <sip:[email protected];user=phone>
>> From: <sip:[email protected];user=phone>;tag=4260414991
>> Call-ID: [email protected]
>> CSeq: 2 INVITE
>> Expires: 300
>> Allow: ACK, BYE, CANCEL, INVITE, NOTIFY, OPTIONS, REFER,
>> REGISTER, PRACK, UPDATE
>> Content-Type: application/sdp
>> Proxy-Authorization: Digest
>> username="userA",realm="",nonce="1231192060:64976ad5abf3f2b1e8
>> f9d72b7c7e71b9",uri="sip:[email protected]",response="b6e1d9
>> faa7b9dbb897250f531c5cc092",qop=auth-int,nc=00000001,cnonce="f
>> 9919a53"
>>
>> Supported: replaces, 100rel
>> User-Agent: Cisco-CP7912/8.0.0-060111A
>> Content-Length: 286
>>
>> v=0
>> o=200 10340144 10340144 IN IP4 192.168.254.1 s=Cisco 7912 SIP
>> Call c=IN IP4 192.168.254.1 t=0 0 m=audio 16384 RTP/AVP 0 18
>> 8 101 a=rtpmap:0 PCMU/8000/1
>> a=rtpmap:18 G729/8000/1
>> a=fmtp:18 annexb=yes
>> a=rtpmap:8 PCMA/8000/1
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:101 0-15
>>
>> ==============================================================
>> ===================
>>
>>
>> SIP/2.0 180 Ringing
>> Via: SIP/2.0/UDP 192.168.254.1:5060;branch=z9hG4bK1db88668c5d780ae
>> Contact: <sip:[email protected]:5060;user=phone;transport=udp>
>> To: <sip:[email protected]:5060>;user=phone;tag=3440312132
>> From: <sip:[email protected];user=phone>;tag=4260414991
>> Call-ID: [email protected]
>> CSeq: 2 INVITE
>> Allow: ACK, BYE, CANCEL, INVITE, NOTIFY, OPTIONS, REFER,
>> REGISTER, PRACK, UPDATE
>> Server: Cisco-CP7912/8.0.0-060111A
>> Content-Length: 0
>>
>> _______________________________________________
>> Sip-implementors mailing list
>> [email protected]
>> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
>>
>
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