Mark,

We have also seen this behavior. In fact, we see a NOTIFY eventually being sent by the as5350 with a "200 OK" reported,
although in fact, the 5350 has made not attempt to INVITE the target in the Refer-To header. As far as I can tell, this is a bug
in the Cisco SIP implementation, and we are planning on opening a ticket to that effect.


Bruce



On Mar 31, 2005, at 12:39 AM, Mark Roeten wrote:

















Dear Sirs,

Assume a connection between a sip endpoint and a POTS peer, AB
connection. The access to the POTS is through a cisco gateway.

A (pots) ----------- AS5350 -------------- B sipEndpoint.

|
|  (Transfer the AB connection to AC)
|

C sipEndpoint

Whenever we try to transfer the AB connection to AC, debug of the AS5350
shows the
the following messages:


Received:

REFER sip:[EMAIL PROTECTED]:5060 SIP/2.0
To: <sip:[EMAIL PROTECTED]>;tag=185DB8AC-1410
From: <sip:[EMAIL PROTECTED]>;tag=71775f65
Via: SIP/2.0/UDP 212.29.166.88;branch=z9hG4bKa85b.473d6683.0
Via: SIP/2.0/UDP
192.168.0.41:6360;received=212.29.160.129;branch=z9hG4bK-d87543 -497302518-1-
-d87543-;rport=6360
Call-ID: <mailto:[EMAIL PROTECTED]>
[EMAIL PROTECTED]
CSeq: 3 REFER
Contact: <sip:[EMAIL PROTECTED]:6360>
Max-Forwards: 16
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE,
INFO
User-Agent: eyeBeam release 3004w stamp 16863
Refer-To: <sip:[EMAIL PROTECTED]>
Referred-By: 12345<sip:[EMAIL PROTECTED]>
Content-Length: 0


Sent:

SIP/2.0 202 Accepted
Via: SIP/2.0/UDP 212.29.166.88;branch=z9hG4bKa85b.473d6683.0,SIP/2.0/UDP
192.168.0.41:6360;received=212.29.160.129;branch=z9hG4bK-d87543 -497302518-1-
-d87543-;rport=6360
From: <sip:[EMAIL PROTECTED]>;tag=71775f65
To: <sip:[EMAIL PROTECTED]>;tag=185DB8AC-1410
Date: Wed, 30 Mar 2005 08:35:08 GMT
Call-ID: <mailto:[EMAIL PROTECTED]>
[EMAIL PROTECTED]
Server: Cisco-SIPGateway/IOS-12.x
CSeq: 3 REFER
Content-Length: 0


SipEndPoint B remains in de state  "Requesting blind transfer". So the
transfer is not established. Could you please help me out asap?

I am using Cisco IOS Software, 5350 Software (C5350-IS-M), Version
12.3(8)T3, RELEASE SOFTWARE (fc1).

dial-peer voice 1 pots
 application vxml
 voice-class aaa 1
 incoming called-number 01079987
 port 3/0:D
!

dial-peer voice 2 pots
 application vxml
 voice-class aaa 1
 incoming called-number 01079987
 port 3/1:D
!

dial-peer voice 3 voip
 application session
 destination-pattern 12345
 voice-class aaa 1
 session protocol sipv2
 session target sip-server
 incoming called-number 12345
 dtmf-relay sip-notify rtp-nte
 codec g711ulaw
!

dial-peer voice 4 voip
 application session
 destination-pattern 06900
 voice-class aaa 1
 session protocol sipv2
 session target sip-server
 dtmf-relay sip-notify rtp-nte
 codec g711ulaw
!

dial-peer voice 5 pots
 destination-pattern 01876477
 no digit-strip
 port 3/0:D
!

sip-ua
 nat symmetric role passive
 nat symmetric check-media-src
 max-forwards 15
 sip-server ipv4:212.29.166.88

Best regards,



Mark Roeten

TinTel B.V.














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