I am currently working with a Digium gateway that runs on Asterisk with the
same symptoms.  For call transfer, I was able to create a route on the
gateway to take any extension number in my dial plan and send it back out to
the Sipxecs system.  I have not been able to overcome the Park issue.

Richard Bruce
Dimensional Communications 
7915 S. Emerson Ave, Suite 131
Indianapolis, IN  46237
(317) 215-4199- office
(317) 946-1899 - cell
-----Original Message-----
From: sipx-users-boun...@list.sipfoundry.org
[mailto:sipx-users-boun...@list.sipfoundry.org] On Behalf Of Chris Parker
Sent: Tuesday, November 06, 2012 2:40 PM
To: sipx-users@list.sipfoundry.org
Subject: Re: [sipx-users] Cannot Xfer Calls Received from Unmanaged Trunks

The call volume is going to be very low. If I understand this correctly, I
would create a trunk under Gateways in sipX for my Asterisk system and
create the other end in Asterisk accordingly, rather than calling it an
Unmanaged Gateway.
And to answer another question, yes the sipX and Asterisk system are on the
same subnet whereas CUCM is in a different subnet but has unrestricted
access to that subnet.

On Nov 6, 2012, at 12:00 PM, sipx-users-requ...@list.sipfoundry.org wrote:

> An unmanaged gateway is just that. Can I assume that the address for both
systems are on the same subnet? Unmanaged gateways would assume that the
other and knows how to handle the SIP REFER method.
> 
> Asterisk as a sip trunking system is not exactly compliant.
> 
> If REFER is not supported, then the media needs to be anchored by sipx
once it accepts the call and hold the REFER internally, at which point you
would setup a manual sip TRUNK not a gateway.
> 

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