Appendix A

Troubleshooting

The following table provides solutions to installation errors: Problem Solution The NMS TAPI Service Provider is already installed on the system. An earlier installation of NMS TAPI may not have been removed correctly. Run the uninstall program for the previous version of NMS TAPI and then re-install NMS TAPI 1.4. Natural MicroSystems Service Provider does not appear in the list of available TSPs. There was a problem with the installation. Run the uninstall program for NMS TAPI and then re-install NMS TAPI 1.4. 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.

Problem	Solution
The NMS TAPI Service Provider is already installed on the system.	An earlier installation of NMS TAPI may not have been removed correctly. Run the uninstall program for the previous version of NMS TAPI and then re-install NMS TAPI 1.4.
Natural MicroSystems Service Provider does not appear in the list of available TSPs.	There was a problem with the installation. Run the uninstall program for NMS TAPI and then re-install NMS TAPI 1.4.
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 Windows Event Log may report any of the following errors when it encounters problems during NMS TAPI initialization: Error Type Error Fatal (Installation returns appropriate error code) · Version negotiation failed · AG board(s) loading failed · QX board(s) loading failed · Configuration data is not available · CTA initialization failed · CTA parameter(s) setting failed · Digital trunk(s) did not sync in time · Memory allocation failed · Default connecting failed · Verification of required Natural Access parameters failed Non-Fatal · Audio RPC transport initialization failed · Fax RPC transport initialization failed

Error Type	Error
Fatal (Installation returns appropriate error code)	· Version negotiation failed · AG board(s) loading failed · QX board(s) loading failed · Configuration data is not available · CTA initialization failed · CTA parameter(s) setting failed · Digital trunk(s) did not sync in time · Memory allocation failed · Default connecting failed · Verification of required Natural Access parameters failed
Non-Fatal	· Audio RPC transport initialization failed · Fax RPC transport initialization failed

This section describes problems and solutions that apply to the TAPI functions.

The following problems and solutions apply to WAVE functions: Problem Solution Play, record, or other WAVE capabilities do not work on NMS hardware. You may need to add the NMS WAVE driver to the Windows list of WAVE drivers. 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 attempts 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 is connected by the NMS TSP, this output may be heard through the telephone. Install another audio device or disable sounds using the Sounds applet in the Windows Control Panel.

Problem	Solution
Play, record, or other WAVE capabilities do not work on NMS hardware.	You may need to add the NMS WAVE driver to the Windows list of WAVE drivers. 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 attempts 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 is connected by the NMS TSP, this output may be heard through the telephone. Install another audio device or disable sounds using the Sounds applet in the Windows Control Panel.

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