[cisco-voip] fax and data using 4fxs/did

[Campbell, Jeremy]

I fixed the fax portion of the problem described below by following the
instructions in this document on Cisco's web site:
http://www.cisco.com/warp/public/788/AVVID/fax_hairpin.pdf

 

Does anyone have any recommendation on making modems work better through
an FXS port?  

 

Thanks,

Jeremy

 

________________________________________
Jeremy P. Campbell
Information Systems Director
Town of Davidson, NC
704-892-7591 ext. 248 - voice
704-892-3971 - fax

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Campbell,
Jeremy
Sent: Wednesday, October 20, 2004 9:37 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] fax and data using 4fxs/did

 

Hi folks,

 

We recently installed a CCM+Unity system.  It works great in just about
every respect.  We also put a 4fxs/did card in the 2651xm for analog
applications, namely modem and fax.  While I can make and receive calls
using an analog phone over these lines, data transmissions receive lots
of CRC errors and faxes get only partially transmitted.  

 

I know enough about this system to manage CCM and Unity using the web
interfaces, and I know enough IOS to bring up simple t1 links for data.
This IPT stuff is all new for me.  I would really appreciate some help
in diagnosing this issue.  I can provide whatever information you all
might need to help.

 

It seems like I might need some additional configuration here:

 

voice-port 1/0/0

!

voice-port 1/0/1

!

voice-port 1/0/2

!

voice-port 1/0/3

!

 

These, I believe, are the 4 ports from the 4fxs/did.  They're all fax
and data.

 

Many, many thanks,

Jeremy  

 

________________________________________
Jeremy P. Campbell
Information Systems Director
Town of Davidson, NC
704-892-7591 ext. 248 - voice
704-892-3971 - fax

 

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