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063
065
BEARER TYPE NG
066
069
REQUESTED FACILITY NOT
IMPLEMENTED
079
081
INVALID CALL
082
088
INCOMPATIBLE
091
096
MANDATORY INFORMATION
097
MESSAGE TYPE NON-EXISTENT
OR NOT IMPLEMENTED
099
INFORMATION ELEMENT
NON-EXISTENT OR NOT IMPLEMENTED
100
INVALID INFORMATION
ELEMENT CONTENTS
101
MESSAGE NOT COMPATIBLE WITH CALL STATE
102
RECOVERY ON TIMER EXPIRY
111
127
INTERWORKING,
UNSPECIFIED
Table A-2 National Standardized Cause Values
Cause
#
Message Displayed
004
VACANT CODE..............
008
PREFIX 0 DIALED IN ERROR
A
009
PREFIX 1 DIALED IN ERROR
010
PREFIX 1 NOT DIALED
011
EXCESSIIVE DIGITS RECEIVED,..................
CALL IS PROCEEDING
26
MISROUTED CALL TO A PORTED NUMBER
051
CALL TYPE INCOMPATIBLE WITH SERVICE REQUEST
053
SERVICE OPERATION VIOLATED
101
PROTOCOL ERROR.......
THRESHOLD EXCEEDED
A-2
Service or option not available
Bearer service not implemented
Channel type not implemented
Network cannot support requested
facility
Service or option not implemented,
unspecified
Call reference not currently in use
Identified channel does not exist
Incompatible destination
Transit network does not exist
Message not recognized by switch
Message not recognized by switch
Coding structure not implemented
Procedure underway due to timer
expiration
Protocol error, unspecified
Message meaning unknown to
switch
Description
Unused area or central office code
Switch has truncated excessive digits and
call is proceeding
Call cleared due to excessive protocol
errors
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