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Service Hints & Tips |
Document ID: GSMH-39GFB3 |
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Aptiva - Cannot receive fax with software
Applicable to: World-Wide
Service Information:
QUESTION:
Why don't certain FAX machines work with my Aptiva FAX software?
ANSWER:
HINTS ABOUT WHY SOME FAX MACHINES MAY NOT COMMUNICATE WITH YOUR APTIVA FAX SOFTWARE.
Most fax machines send a 1100Hz (CNG) announce tone. MOST produce this tone; some older fax machines do not
produce this tone (they were around before this was a standard) and some fax machines do not produce this tone unless someone hits the "send" button. Our friend, Mr. Telephony Package, uses this 1100Hz to discriminate faxes from a voice when someone calls.
Since some fax machines do not produce this tone, the designers of these packages added a fail-safe, the ability to
also look for a "0" tone. For those keeping score, the "0" tone is actually two tones (DTMF) consisting of the frequencies
1477Hz and 941Hz. The "0" tone method was predicated on the idea that most people would be able to produce this tone. As we know, this is not one hundred percent effective. Some systems will not allow you to produce this tone as the keypad may be disabled without the handset. This is the case on our very own Pitney Bowes. Other fax machines may not have a keypad at all.
So What Does All This Mean:
If you have an older fax machine, or one that does not produce an announce tone, and has no means to produce a "0" tone, a telephony package, like FaxWorks or Aptiva Communication Center, will not be able to automatically determine that the incoming call is a fax. The end result is a missed fax or a voice message of fax machine negotiation tones.
We have known this for some time, but we now know it's official: some fax machines simply do not work with telephony packages unless you do a "manual receive".
If you can't receive faxes from some fax machines you can try the following procedure to set the default incoming call type to be fax:
1. Goto My Computer->C drive->mww->discrim and run DISCAPP.EXE (double click the discapp icon).
2. Change the following settings.
a. Change the icon on the "If silence treat call as" line from Modem icon to Fax icon.
b. Put an X in the "Enable Initial Greeting".
3. After changing these settings click on the OK button this will change settings to the C:\WINDOWS\DISCAPP.INI.
If the phone line is silent for the first 5 seconds after the phone call is answered, the Aptiva Mwave will treat the incoming calls as fax. This correction enables you to receive voice and fax messages.
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Hint Category |
Communications Software | |
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Date Created |
04-09-96 | |
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Last Updated |
17-02-99 | |
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Revision Date |
17-02-2000 | |
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Brand |
IBM Aptiva | |
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Product Family |
Aptiva | |
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Machine Type |
2144, 2168 | |
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Retain Tip (if applicable) |
N/A | |
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