Microsoft KB Archive/177978

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Modem Does Not Dial All Numbers in Calling Card Rule

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Q177978

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The information in this article applies to:


 * Microsoft Windows 95

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SYMPTOMS
When you attempt to use a calling card rule with Dial-Up Networking, HyperTerminal, Microsoft Fax, Phone Dialer, or any other program that uses Windows 95 telephony, your modem may not dial all the numbers in the dial string.

CAUSE
This behavior can occur if either of the following conditions exists:

 The buffer on your modem is too small to store all the numbers in the calling card rule.  The following line exists in your modem's .inf file:      HKR, Settings, DialSuffix,, ";" The semicolon between the quotation marks causes your modem not to dial all the numbers in the calling card rule. 

RESOLUTION
To resolve this behavior, follow the steps in the appropriate section below:

The Buffer on Your Modem Is Too Small
To determine if the buffer on your modem is too small to store all the numbers in the calling card rule, follow these steps:

 Click Start, point to Programs, and then click MS-DOS Prompt.  At the command prompt, type the following command, and then press ENTER: "echo atdt > com" where  is the number of the communications port your modem is connected to, and are the numbers you specified in the calling card rule. 

If your modem does not dial all the numbers in the calling card rule, the buffer on your modem is too small. To resolve this issue, contact the modem's manufacturer to inquire about a possible firmware update.

The .inf File Contains a "DialSuffix" Line with a Semicolon
Microsoft does not encourage or support changes to .inf files; therefore, Microsoft Technical Support does not support the procedure in this article. Although we have tested the following procedure and it appears to function as described, make a backup copy of your modem's .inf file before you proceed.

 Use any text editor (such as Notepad) to open your modem's .inf file in the Windows\Inf folder. Please see the "More Information" section later in this article for the .inf file your particular modem uses.

NOTE: The Inf folder is a hidden folder. To view this folder, click Start, point to Programs, click Windows Explorer, click Options on the View menu, click Show All Files on the View tab, and then click OK.</li>  Search for all instances of the following line, and remove the semicolon only (do not remove the quotation marks): "HKR, Settings, DialSuffix,, ';'"</li> Save the .inf file, and then quit the text editor.</li> Click Start, point to Find, and then click Files Or Folders.</li> In the Named box, type drvdata.bin drvidx.bin, and then click Find Now.</li> In the list of found files, right-click each file, and then click Delete.</li> Close the Find window.</li> Click Start, point to Settings, and then click Control Panel.</li> Double-click Modems.</li> On the General tab, click your modem, and then click Remove.</li> Click Add.</li> If you want Windows 95 to detect your modem, click Next. If not, click the "Don't detect my modem; I will select it from a list" check box to select it, and then click Next.</li> If you chose to have Windows 95 detect your modem, Windows 95 queries the serial ports on your computer looking for a modem. If Windows 95 detects an incorrect modem, click Change, and then click the appropriate manufacturer and model for your modem. Click Next, and then skip to step 16.</li> If you choose to select your modem manually, click the appropriate manufacturer and model for your modem, and then click Next.</li> Click the communications port your modem uses, and then click Next.</li> Click Finish, and then click Close. The .bin files you deleted are replaced with new versions, and the updated .inf file for your modem is used.</li></ol>

MORE INFORMATION
The following table lists the modem .inf files included with Windows 95.

NOTE: If your modem is not listed, contact the modem's manufacturer for the name of the .inf file your modem uses.

<pre class="FIXEDTEXT">  File           Modem manufacturer ---  Mdmati.inf     ATI Technologies Inc.   Mdmatt.inf     AT&T Mdmaus.inf    This .inf file supports Australian modems that use generic command set information Mdmboca.inf   Boca Research, Inc.   Mdmcommu.inf   Communicate Limited Mdmcpi.inf    Computer Peripherals Inc.   Mdmcpq.inf     Compaq Computer Corp, AST, DEC Mdmdsi.inf    Digicom Systems and Creative Labs Mdmexp.inf    EXP and Angia Mdmgatew.inf  Gateway 2000 Mdmgen.inf    This .inf file supports modems that use generic command set information Mdmgvc.inf    GVC, Packard Bell, IBM, Turbomodem, Compaq Mdmhayes.inf  Hayes, Megahertz, InteCom, Psion, Ventel Mdminfot.inf  Infotel and Creatix Mdmintel.inf  Intel Corp. Mdmintpc.inf  Intel Corp. (PCMCIA models) Mdmmcom.inf   Microcom, Inc. Mdmmetri.inf  Metricom, Inc. Mdmmhrtz.inf  Megahertz Corp.   Mdmmoto.inf    Motorola Mdmmts.inf    MultiTech Systems Mdmnokia.inf  Nokia Mobile Phones Mdmnova.inf   NovaLink Technologies, Inc Mdmosi.inf    Ositech Communications, Inc.   Mdmpace.inf    Pace Micro Communications Ltd Mdmpnb.inf    P.N.B   Mdmpp.inf      Practical Peripherals Mdmracal.inf  Racal Mdmrock.inf   This .inf file supports Rockwell and some Cirrus chip set modems (this encompasses many manufacturers and                 models) Mdmrock2.inf  This .inf file supports Rockwell and some Cirrus chip set modems Mdmsier.inf   Sierra Semiconductor Mdmsonix.inf  Sonix Communications Ltd Mdmspec.inf   This .inf file supports Mwave modems from Spectrum, IBM, Best Data, and other manufacturers Mdmsupra.inf  Supra Corporation Mdmtdk.inf    TDK Mdmtelbt.inf  Telebit Mdmti.inf     Texas Instruments Mdmtosh.inf   Toshiba, Noteworthy Mdmusrcr.inf  U.S. Robotics, Inc. (Courier) Mdmusrsp.inf  U.S.Robotics, Inc. (Sportster) Mdmusrwp.inf  U.S. Robotics, Inc.   Mdmvv.inf      This .inf file supports modems that use generic VoiceView command set information Mdmzoom.inf   Zoom Telephonics, Inc.   Mdmzyp.inf     Zypcom Mdmzyxel.inf  ZyXEL For additional information about calling card rules in Windows 95, please see the following article in the Microsoft Knowledge Base:

"Q167220 How to Create Custom Calling Card Rules" Additional query words: tapi dun hyperterm

Keywords : win95

Issue type : kbprb

Technology : kbWin95search kbWin95