[cisco-voip] FAX not working to one number FIXED

Thu May 24 22:48:48 EDT 2007

[cisco-voip] FAX not working to one numberIs it possible to have an VG224 with ports using different protocols?

  ----- Original Message ----- 
  From: Erick Bergquist 
  To: Lelio Fulgenzi ; Ahmed Elnagar ; ciscovoip 
  Sent: Thursday, May 24, 2007 10:29 PM
  Subject: Re: [cisco-voip] FAX not working to one number *FIXED*

  Well, since SCCP only supports passthrough, I don't see it causing any problems if the commands are there. I guess the commands force it to skip over figuring out what to do dynamically, but if it can only do passthrough with SCCP then there is a breakdown somewhere. Oh well, I am happy to get past another weird FAX problem with one number and not causing any other FAX problems. 

  Now, TAC was suggesting going to Fax Relay now with MGCP or H323 and moving away from passthrough. So there must have been improvements, as before recent IOS versions passthrough was way to go. The new IOS versions (recent 12.4T) has a fax-relay command to make SG3 fax go to G3 fax also, but this is when doing Fax relay. 

  ----- Original Message ----
  From: Lelio Fulgenzi <lelio at uoguelph.ca>
  To: Erick Bergquist <erickbe at yahoo.com>; Ahmed Elnagar <aelnagar at ACT-EG.COM>; ciscovoip <cisco-voip at puck.nether.net>
  Sent: Thursday, May 24, 2007 9:05:16 PM
  Subject: Re: [cisco-voip] FAX not working to one number *FIXED*

  we're about to deploy a vg224 with sCCP.

  think i should add this to my config from the start?

    ----- Original Message ----- 
    From: Erick Bergquist 
    To: Lelio Fulgenzi ; Ahmed Elnagar ; ciscovoip 
    Sent: Thursday, May 24, 2007 9:23 PM
    Subject: Re: [cisco-voip] FAX not working to one number *FIXED*

    FYI, 

    We got the one number working.  We had to force the VG224 to do fax and modem passthrough globally and by setting stcapp to enable passthrough on each port. We had to do this even though SCCP (Stcapp) only supports passthrough.

    Commands added to VG224 config,

    voice service voip 
     fax protocol pass-through g711ulaw
     modem passthrough nse codec g711ulaw

    and then this, for each voice port...

    stcapp register capability 2/0 modem-passthrough

    ----- Original Message ----
    From: Lelio Fulgenzi <lelio at uoguelph.ca>
    To: Ahmed Elnagar <aelnagar at ACT-EG.COM>; Erick Bergquist <erickbe at yahoo.com>; ciscovoip <cisco-voip at puck.nether.net>
    Sent: Saturday, May 19, 2007 9:39:10 AM
    Subject: Re: [cisco-voip] FAX not working to one number

    where is this disabled?

      ----- Original Message ----- 
      From: Ahmed Elnagar 
      To: Erick Bergquist ; ciscovoip 
      Sent: Saturday, May 19, 2007 9:21 AM
      Subject: Re: [cisco-voip] FAX not working to one number

      try to make sure that ECM feature is disabled. this may cause fax failure

      Thanks and Best Regards

      Ahmed A. Elnagar
      Network Field Engineer

      Advanced Computer Technology (ACT)
      16 Fawzy Ramah St.Off Shehab St.Mohandessin, Giza, Egypt 
      Postal Code:12411 Cairo Egypt

      Mob: +2010-2833868
      Website: www.act-eg.com
      E-mail: aelnagar at act-eg.com

--------------------------------------------------------------------------
      From: cisco-voip-bounces at puck.nether.net on behalf of Erick Bergquist
      Sent: Wed 16-May-07 9:10 PM
      To: ciscovoip
      Subject: [cisco-voip] FAX not working to one number

      I have a strange FAX issue, where a FAX machine connected to a VG224 can send/receive FAX to any number but is not able to send one outside number a FAX. It can receive FAX's from them fine, just not send. The FAX machines phone or a phone plugged into the FAX phone line can call the # fine so there is not a CSS issue, etc.

      The FAX machine is plugged into a VG224 with IOS 12.4(11)T , the VG224 is configured as SCCP (stcapp) and we have tried setting the port capabilty to modem passthrough and not with no change.

      The PSTN Gateway is a Cisco 2821 with a PRI, it is MGCP and running IOS 12.4(9)T and has FAX relay disabled.

      We have tried 7 different FAX machines of different models and neither are able to call this particular outside FAX machine when going over IPT. When the FAX machines are plugged into a traditional analog circuit there is not a problem and the FAX works fine.

      Any ideas?

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