[cisco-voip] Troubleshooting Fax Problems

[Lelio Fulgenzi]

The TAC can help too. I thought I had everything right after read documentation and it turns out there were a few extra things to do and things that the TAC recommends. They were of great help on this one. But yes, the following below is important as well. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Truelove_John" <JTruelove at aetinc.com> 
To: "Edward Countryman" <Edward.Countryman at provena.org>, cisco-voip at puck.nether.net 
Sent: Friday, September 4, 2009 11:27:33 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] Troubleshooting Fax Problems 




Some things that I have done in the past with trouble shooting fax problems (VG224): 

Disable ECM on fax machines 

Disable Super G3 on fax machines 

Set RX/TX speed on fax machines to 9600 or 14400 baud rates. 

Make sure your Region / Device Pool for fax machines has Codec set to G.711. 

John 





From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Countryman, Edward 
Sent: Friday, September 04, 2009 11:19 AM 
To: cisco-voip at puck.nether.net 
Subject: [cisco-voip] Troubleshooting Fax Problems 



I have a remote site (50 users) trunked with a PRI to a 2821 router. I use ata186’s for fax machines. The users at this site are reporting that many of the folks that used to be able fax to them prior to moving in cannot now that they are on an ATA. The fax machine reports “line failure” or “no fax detected” when this occurs. Other sites can fax in no problem. The gateway is set up for fax-pass-through and DTFM relay “Current GW Config” (?) and the DSPware is current (28x). The ATA parameters of course are cryptic. We are a CCM 61 shop 

I will likely go to tac but this is one of those problems that is painful to troubleshoot. I was looking for thoughts and experiences on resolving these types of issues. 


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