Exception Conditions - Nortel DMS-250 Reference Manual

Table 5-3
Treatment-to-cause mapping
Treatment
N00_call_blocked (N00B)
NCS_incoming_exclusion (NCIX)
NCS_invalid_ID_code (NCII)
NCS_translation_failure (NCTF)
No_service_circuit (NOSC)
No_software_resource (NOSR)
NPA_restricted (NPAR)
Partial dial (PDIL)
Perm_signal (PSIG)
Reorder (RODR)
Service_currently_unavailable
(SCUN)
System_failure (SYFL)
Temporarily_invalid (TINV)
Vacant_code (VACT)
Vacant_speed_number (VACS)
Vacant_country_code (VCCT)

Exception conditions

Exception conditions that occur include B-channel glare, B-channel lockout,
no response to SETUP, no response after a CALL PROCeed message, and
protocol violations. These are described as follows.
Digital Switching Systems DMS-250 ISDN Reference Manual MWC14 (CSP14)
(continued)
Cause
Service or option not available (63)
Incoming calls barred (54)
Incomplete number (28)
Incomplete number (28)
No channel/circuit available (34)
Resource unavailable (44)
Incoming calls barred (54)
Incomplete number (28)
Destination missing and direct call not
subscribed (90)
Unknown (0)
Service or option not available (63)
Incomplete number (28)
Incomplete number (28)
Unassigned number (1)
Unassigned number (1)
Unassigned number (1)
—end—
Call control procedures 5-37