Error 633: The modem is not installed or configured for Dial-Up Networking.
To check your modem configuration, double-click the Modems icon in Control Panel This issue can occur if either of the following conditions exists:
1. The Telephony Application Programming Interface (TAPI) service provider entry in the registry is missing or has been altered.
2. The Telephon.ini file is missing or damaged.
To resolve this issue if the TAPI service provider entry in the registry is missing or has been altered, use Registry Editor to view the following registry key:
Code:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Current Version\ Telephony\Providers
Modify the value of the ProviderFilename0 value to "TSP3216L.TSP" (without quotation marks), save these changes, quit Registry Editor, and then restart your computer.
To resolve this issue if the Telephon.ini file is missing or damaged, follow these steps:
1. Click Start, point to Find, and then click Files Or Folders.
2. In the Named box, type telephon.ini, and then click Find Now.
3. If you do not find the Telephon.ini file, skip to step 4. If you do find the Telephon.ini file, right-click it, click Rename, type telephon.old, and then press ENTER.
4. Quit the Find tool, click Start, click Run, type tapiini.exe, and then press ENTER.
5. Restart your computer.
WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. I cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.