Thank you Michael, here you go:
 
sipXecs (4.4.0- 2011-10-12EDT17:21:46 domU-12-31-39-00-0D-21)
Copyright (C) 2010/11 SIPfoundry Inc.
 
 
From: [email protected]
[mailto:[email protected]] On Behalf Of Michael Picher
Sent: Saturday, January 07, 2012 9:42 AM
To: Discussion list for users of sipXecs software
Subject: Re: [sipx-users] Call Forwarding ..
 
What version of 4.4 are you on (check bottom of GUI and post here)?
On Sat, Jan 7, 2012 at 9:11 AM, S.K.- G <[email protected]> wrote:
Dear All,

We are experiencing a weird problem with the Trunk to trunk call forwarding
feature.

The call forwarding is not working when an outside caller gets forwarded to
another external number.. the call ends up with a dead air, seems like the
RTP stream is not getting connected properly as the SIP signaling
negotiation process is being completed properly and the receiver phone rings
but no audio path when answered. 

We have tried the resolution xx-9521 but didn't make any differences as the
INVITE From ITSP Account was checked ..

NAT Traversal, and Server behind NAT are checked in the internet calling
form.. SIPX 4.4 on VMWARE server, Polycom IP 650 station, X-lite 4.0
The network diagram:   SIPX > SBC> remote Polycom phones(In DMZ)

Any helps will be highly appreciated

Regards

Saad Khankan
Toronto- Canada
 

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-- 
Michael Picher, Director of Technical Services
eZuce, Inc.
300 Brickstone Square
Suite 201
Andover, MA. 01810
O.978-296-1005 X2015 
M.207-956-0262
@mpicher <http://twitter.com/mpicher> 
www.ezuce.com
 
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