[cisco-voip] Fax Server

[Pritchard, Jon]

I forgot to specify.  You need to be on minimum CCM 4.2(3) in order for
MGCP T38 support to work as described below.

Jon

-----Original Message-----
From: Pritchard, Jon 
Sent: Tuesday, January 29, 2008 2:00 PM
To: 'cisco-voip at puck.nether.net'
Subject: Re: Fax Server 

Scott, Carlos,

We recently finished turning up Xmedius 5.2 against MGCP voice gateways.
I have mixed-mode fax pass-through and T38 coexisting simultaneously
supporting MGCP VG224's, VG248's, ATA's plus Xmedius.  However, to keep
things sane we opted to not have Xmedius and legacy faxes internally
dial each other.  

Primary configuration model is to enable T38 on MGCP (see below) and to
route calls via CCM route patterns to Xmedius configured as a H.323
gateway.  Then you set up route patterns for the inbound Xmedius DID's
to route to the H323 gateway.  I recommend using fax server only
CSS/partitions to manage outbound dial-plan separately.

Key thing to make legacy faxes work with the majority of the rest of the
world of fax machines is to force all legacy fax interfaces to fax
pass-through (inhibit T38 on VG224's, disable fax relay on VG248 ports).

Also, make sure your PSTN voice gateways and the VG224's are the same
rev IOS. We are standardized currently on 12.4(13d).

The key commands for the MGCP PSTN gateway are:

 no mgcp fax t38 inhibit 
 mgcp package-capability fxr-package 
 no ccm-manager fax protocol cisco 
 no mgcp fax t38 ecm
 mgcp fax rate 14400

Found no reason to modify the default (0) of mgcp fax t38 ls_redundancy
or hs_redundany.

Jon P.




This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system.