For ERROR status indications, the cause token of the cause diagnostic (causDgn) information element contains one of the following values:
Cause value |
Description |
CCNORTTOTSFNET |
ISUP layer could not find a route matching the transient network ID supplied in the request. Not generated if the application performs circuit selection. |
CCNORTTODEST |
ISUP layer could not find a route matching the called party address supplied in the request, or neither the transient network ID nor the called party address were supplied. Not generated if the application performs circuit selection. |
CCNOCIRCUIT |
ISUP layer could not find a circuit matching the transmission medium and/or ISDN user profiles supplied in the request. Not generated if the application performs circuit selection. |
CCINVALCALLREF |
Values supplied for a service user instance ID and/or service provider instance ID are invalid. |
CCSWTCHCONG |
No call references were available to satisfy the request, or the requested circuit is busy. |
CCRESCUNAVAIL |
There is insufficient memory for the ISUP layer to satisfy the request. |
CCREQUNAVAIL |
Requested circuit is not configured. |
CCDESTOUTORD |
Requested circuit was marked unavailable due to receipt of a pause or user part unavailable status indication from MTP. |
CCPROTERR |
Circuit ID supplied is invalid for the supplied service provider instance ID, the request is invalid for the configured switch type, or the request is invalid for the current circuit or group state. |
CCINVALPARAMCONT |
The value specified in an information element is invalid. |
CCINFOELMSSG |
A mandatory information element was not supplied. |