[cisco-voip] IP Based Fax Servers

Matthew Ballard mballard at otis.edu
Fri Dec 2 17:52:15 EST 2011


Good point on the T.38 - FYI for reference, I configured any analog
ports doing T.38 using MGCP, and our main voice gateway uses H.323.  I
run the VG224 in a mixed SCCP/MGCP mode, SCCP for voice ports, and MGCP
for T.38 ports.

 

Matthew Ballard

Network Manager

Otis College of Art and Design

mballard at otis.edu

 

 

From: Nate VanMaren [mailto:VanMarenNP at ldschurch.org] 
Sent: Friday, December 02, 2011 2:37 PM
To: Matthew Ballard; Scott Voll; Mike King
Cc: Cisco VoIPoE List
Subject: RE: [cisco-voip] IP Based Fax Servers

 

I am a big proponent of T.38 for fax, especially when it comes time to
do a fax server, if you're doing the right kind of T.38 should be an
easy migration.

 

SCCP does not do protocol based T.38, which is the standard. It only
does NSE based T.38 which is cisco proprietary.  Therefore, I try as
hard as I can not to do analog gateways as SCCP.

 

I found this article the other day, I haven't read it all but it looks
really good

https://supportforums.cisco.com/docs/DOC-14470#Q_What_are_some_best_prac
tices_for_configuring_T38_Fax_Relay_on_a_VG224_analog_gateway_running_SC
CP_and_STCAPP

 

 

-Nate

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matthew Ballard
Sent: Friday, December 02, 2011 2:22 PM
To: Scott Voll; Mike King
Cc: Cisco VoIPoE List
Subject: Re: [cisco-voip] IP Based Fax Servers

 

When I implemented the fax server here, I switched the remaining analog
faxes (very few at this point) onto a VG224, VG202s, or a 1861 in one
case, and configured those to use T.38 as well, so that we only use T.38
for faxes on the IP network.  Our main voice gateway then does the
translation to a traditional PRI.

 

Since the migration, I rarely have to troubleshoot fax problems anymore,
and basically never have to troubleshoot actual fax protocol issues,
only configuration between the MFPs and/or email.

 

We are using XMedius, I'm generally happy with it.

 

In order to keep the traditional experience for faxing (for sending at
least, ie the ability to walk up and send a fax), we use HP MFPs
(3035/3530 or higher) with the HP DSS software so that the faxes go out
through the fax server.  Incoming faxes are either routed by email or
printed on a printer, depending on what the department wanted.

 

Even when something does have to be worked on, there are fewer points of
problem with this setup, plus I was able to mostly abandon the old phone
infrastructure (I switched from using the old 100 pair copper trunks
between floors to a couple of CAT5 cables that were already  in place
but unused to handle all remaining analog lines).

 

Matthew Ballard

Network Manager

Otis College of Art and Design

mballard at otis.edu

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Scott Voll
Sent: Friday, December 02, 2011 9:35 AM
To: Mike King
Cc: Cisco VoIPoE List
Subject: Re: [cisco-voip] IP Based Fax Servers

 

Are all Fax machines going away?

 

if not, how will you support both T.38 and fax passthrough?

 

is T.38 stuff coming in on only one pri?

 

Currently we use right fax... my last enterprise we used Xmeduis...... I
like Xmedius much better.  just my 2 cents

 

Scott

On Fri, Dec 2, 2011 at 8:55 AM, Mike King <me at mpking.com> wrote:

I'm looking to escape the support nightmare of Fax machines.  We
currently have over 100 fax machines in our enterprise, mostly connected
to VG224's, some on ATA's (ugh).  At least once a week I spend a few
hours troubleshooting a faxing issue.  (All my sites use PRI's on H323
gateways or MGCP gateways)

 

Based on Paper, Toner, Drums, Smartnet, and my time savings, I've got a
real sweet story on introducing a fax server.  (It'll most likely be a
Biscom FAXCom server because it supports direct tie in to our Enterprise
application)

 

They support (require?) T.38.   Should T.38 be the silver bullet and
this should "Just Work" or am I trading one headache for another?
(Protocol wise, The actual fax software I can't control, and I imagine
they all use T.38 anyways)

 

Mike


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