Telephony problem without an alarm indicator

Blueworx Voice Response can experience telephony problems that do not produce an alarm indicator. When the system is having such a problem, check the following:

Are all the channels in service?
Use the System Monitor to display the status of all channels to which the system is connected. If any channels are out of service, bring them back into service. If the channels are all in service, the problem might be at the switch end.

For more information, see Blueworx Voice Response for AIX: Configuring the System information.

Have you reactivated the trunk?
Use the System Monitor to deactivate the trunk and then activate it again. This action performs a limited set of diagnostics on the digital trunk adapter.

If the diagnostics indicate there is no problem with the digital trunk adapter, you can use the information in the Installation, Maintenance, and Parts Catalog to perform a more complete set of diagnostics on the adapter.

Have you performed a loop-back test?
For DTTA, refer to the IBM Quad Digital Trunk Telephony PCI Adapter (DTTA): Installation and User's Guide to perform a loop-back test between selected points in the system.
Is the telephone network connection through a CSU?
If your configuration includes a CSU, request a loop-back test from the Central Office to the CSU.
Are you using a signaling process that you developed yourself?
Check whether your signaling process is still running. Message 32011 in the error log indicates that a signaling process has terminated.

Use signaling interface tracing to check whether your signaling process is still processing signaling interface primitives correctly. For information on tracing signaling interfaces, see Blueworx Voice Response for AIX: Programming for the Signaling Interface.