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Appendix C

Troubleshooting

This section addresses some common installation issues. For more information, contact Natural MicroSystems Developer Support.

The following symptoms and solutions apply to the installation process: Symptom Solution Receive the following TSP configuration error: The NMS TAPI Service Provider is already installed on the system. An earlier installation of NMS TAPI was not correctly removed. Run the uninstall program for the previous version of NMS TAPI, or refer to section Section 2.5 for instructions about disabling NMS TAPI. Receive the following TSP configuration error: Setup cannot install NMS TAPI service provider. Registry access error. The user is probably not logged in as Administrator. Log out, and then log back in as Administrator.

Symptom	Solution
Receive the following TSP configuration error: `The NMS TAPI Service Provider is already installed on the system`.	An earlier installation of NMS TAPI was not correctly removed. Run the uninstall program for the previous version of NMS TAPI, or refer to section Section 2.5 for instructions about disabling NMS TAPI.
Receive the following TSP configuration error: `Setup cannot install NMS TAPI service provider. Registry access error.`	The user is probably not logged in as Administrator. Log out, and then log back in as Administrator.

The following symptoms and solutions apply to the TAPI functions: Symptom Solution TAPI applications do not function on NMS hardware. Add the NMS TSP to Windows NT's list of TSPs. For more information about enabling and disabling the NMS TSP refer to Section 2.5.1.

Symptom	Solution
TAPI applications do not function on NMS hardware.	Add the NMS TSP to Windows NT's list of TSPs. For more information about enabling and disabling the NMS TSP refer to Section 2.5.1.

The following symptoms and solutions apply to WAVE functions: Symptom Solution Play, record, or other WAVE capabilities, do not work on NMS hardware. You may need to add the NMS WAVE Driver to Windows NT's list of WAVE drivers. For more information about enabling and disabling the NMS TSP refer to Section 2.5.2 The corresponding TAPI line may not be in the Connected state. Windows system sounds, such as dialog box sounds, are audible on the phone line. If no other audio devices are installed, Windows will attempt to use the NMS WAVE driver as an audio output device for playing system sounds. For example, Windows may attempt to play sounds when programs display message boxes and at start-up or shutdown. If a line is open and a call connected by the NMS TSP, this output may be heard through the telephone. Installing another audio device or disable sounds using the Sounds applet on the Windows NT Control Panel.

Symptom	Solution
Play, record, or other WAVE capabilities, do not work on NMS hardware.	You may need to add the NMS WAVE Driver to Windows NT's list of WAVE drivers. For more information about enabling and disabling the NMS TSP refer to Section 2.5.2 The corresponding TAPI line may not be in the Connected state.
Windows system sounds, such as dialog box sounds, are audible on the phone line.	If no other audio devices are installed, Windows will attempt to use the NMS WAVE driver as an audio output device for playing system sounds. For example, Windows may attempt to play sounds when programs display message boxes and at start-up or shutdown. If a line is open and a call connected by the NMS TSP, this output may be heard through the telephone. Installing another audio device or disable sounds using the Sounds applet on the Windows NT Control Panel.

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