T.37 On-ramp Faxing details

Unanswered Question

I have used the T.37 on-ramp faxing before for clients, but never used the wildcards to make it easier on myself (or I thought). Has anyone implemented this using the '$d$' wildcard to send fax-emails to the server?


According to this and the traces that I have seen you have to create email accounts with 'FAX=xxxxxxxxxx' where the x's notate your incoming dialed number (could be 10 or less digits). But the point is that my client says that he cannot use the '=' character in an email alias. Has anyone found a way around this?


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
paolo bevilacqua Tue, 05/08/2007 - 17:27
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    Founding Member


I cannot really help with your question (apparently "=" is allowed per rfc in the local part of email), but since I was researching the subject, wanted to ask you, which platform / IOS are you using?

All the documentation references a builtin fax_on_vfc_onramp_app that is not present the the latest images for 2800 ISR.


paolo bevilacqua Tue, 05/08/2007 - 17:59
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    Founding Member

Hi and thanks.

I've downloaded app-faxmail-onramp. but it does not define the fax_on_vfc_onramp_app service. I can configure that under a mmoip DP, but I think it will not work ? I do not see any other relevant file in the TCLware page.

What do you see doing

sh call application voice summary

on your 2811 ?

It does take a reboot before the service is available, I assume you have done this.

router#sho call application voice summary

SERVICES (standalone applications):

name type description

ipsla-responder Tcl Script builtin:app_test_rcvr_script.tcl

clid_authen Tcl Script builtin:app_clid_authen_script.tcl

clid_col_npw_npw Tcl Script builtin:app_clid_col_npw_npw_script.tcl

Default C Script builtin:Session_Service.C

CTAPP C Script builtin:CallTreatment_Service.C

clid_authen_col_npw Tcl Script builtin:app_clid_authen_col_npw_script.tcl

fax_hop_on Tcl Script builtin:app_fax_hop_on_script.tcl

ipsla-testcall Tcl Script builtin:app_test_place_script.tcl

fax_onramp Tcl Script flash:app_faxmail_onramp.

clid_authen_npw Tcl Script builtin:app_clid_authen_npw_script.tcl

session Tcl Script builtin:app_session_script.tcl

clid_authen_collect Tcl Script builtin:app_clid_authen_collect_script.tcl

clid_col_npw_3 Tcl Script builtin:app_clid_col_npw_3_script.tcl

lib_off_app CCAPI Libretto Offramp

DEFAULT.C.OLD CCAPI Obsolete system session application

fax_on_vfc_onramp_app CCAPI Fax onramp for VFC


name type description

tcl20base C Script builtin:tcl20base_package.C

cantonese C Script builtin:package_cantonese.C

media C Script builtin:package_media.C

vxmlbase C Script builtin:vxmlbase_package.C

destination C Script builtin:Destination.C

english C Script builtin:package_english.C

appcommon C Script builtin:AppCommon.C

httpios C Script builtin:package_httpios.C

indian C Script builtin:package_indian.C

callsetup C Script builtin:CallSetup.C

session_xwork C Script builtin:Session_XWork.C

french C Script builtin:package_french.C

greek C Script builtin:package_greek.C

chinese C Script builtin:package_chinese.C

consult C Script builtin:Consult.C

vietnamese C Script builtin:package_vietnamese.C

tclmodule C Script builtin:TclModule.C

consultresp C Script builtin:ConsultResp.C

german C Script builtin:package_german.C

tclcore C Script builtin:tclcore_package.C

vxmlmodule C Script builtin:VxmlModule.C

russian C Script builtin:package_russian.C

spanish C Script builtin:package_spanish.C

thai C Script builtin:package_thai.C

japanese C Script builtin:package_japanese.C

digitcollect C Script builtin:DigitCollect.C

router#sho ver

Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(3g), RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2006 by Cisco Systems, Inc.

Compiled Mon 06-Nov-06 02:36 by alnguyen

thisisshanky Tue, 05/08/2007 - 18:45
User Badges:
  • Purple, 4500 points or more

Just as a side note:

Cisco recommends that you dedicate a router for offramp/onramp faxing, as the rendering of the fax into tiff format and back can consume a lot of memory and CPU. Same with Unity server. If you have lot of users using this feature with Unity, you may as well buy a third party fax server like Rightfax or Cisco fax server (Captaris).


This Discussion