Cause
The call cannot be completed because the equipment sending this cause value does not support the channel type requested in the SETUP message.
This cause value has end-to-end significance. Communication Manager returns this cause value to the user who has originated the call.
Proposed Solution
Procedure
- Check the diagnostic information (DIAG) for the unsupported channel type. See Event data 2.
- Check Communication Manager administration for the cause value generated by the network.
- Communication Manager is attempting to make a wideband call over an interface to an ISDN network that does not support wideband calls. Check the trunk group and routing translations to ensure that the attempted call inadvertently routed to this interface or was incorrectly classified as a wideband call.
- Check Communication Manager administration for the cause value generated by Communication Manager.
- The network is supporting wideband calling, and Communication Manager does not have wideband support enabled on the Wideband Switching field on the system-parameters customer-options screen.
- Communication Manager does not have wideband support enabled on the Wideband Support field on the appropriate trunk group.
- The trunk group does not have the correct type or types of wideband channels enabled.
- Communication Manager does not have the wideband endpoint of the right size programmed.
