Hi all,

I do have a Router 2811 running 12.4(11)T and CCME 4.0 configured for 20 phones. The router is using a SIP trunk as dial peer.

I found a strange behaviour:

Everything works quite well as long as the SIP provider doesn't send the calling ID.

Call forward and call transfer doesn't work if the SIP provider send the calling ID in the SIP INVITE message.

I turned on debug ccsip message and checked both SIP INVITE messages (with and without calling ID). The only difference is the FROM field of the SIP message.

I called a extention (ephone-dn) which has configured 'call-forward all <external number>'.

The CCME does two different things depending on the visiblitiy of the calling ID.

1. Calling ID not transfered

The FROM field looks like that:

From:<sip:[IP]>;tag=134.....8-

The CCME does reply the INVITE message with a "302 Moved Temporarily".

BTW: This is what I'd like to see.

2. Calling ID is containt in the INVITE message

The FROM field looks like that:

From:<sip:[callerID]@[IP];user=phone>;tag=613...7-

The CCME does send a INVITE message to the SIP provider by using the original calling id in the FROM field. The result is that this called fucked up.

The behaviour for internal call transfer is similar.

Any ideas?

I attached the ccme relevant part of the config. I also included the ephone-dn with the 'call-forward all' as example.

Rgs

Sven.