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APPENDIX A – ERROR MESSAGES
Various messages are displayed to describe connection or command status.
Table A-1 Connection Status Messages
Connection Status
Cause
#
Message Displayed
001
INVALID NUMBER
002
NO ROUTE
003
NO ROUTE
006
CHANNEL UNACCEPTABLE
007
016
017
BUSY
018
NOT ASSIGNED
019
NOT ACCEPTED
021
CALL REJECTED
022
NUMBER CHANGED
026
027
NOT SELECTED
028
INVALID NUMBER
029
FACILITY REJECTED
030
031
034
B-CHANNEL BUSY
035
038
OUT OF ORDER
041
042
NETWORK BUSY
043
ACCESS INFORMATION
DISCARDED
044
REQUESTED CHANNEL
NOT AVAILABLE
047
RESOURCE UNAVAILABLE,
UNSPECIFIED
050
FACILITY N/A
051
SERVICE NG
052
OUTGOING CALL BARRED
053
SERVICE NG
054
CALLED BARRED
057
BEARER TYPE NOT AUTHORIZED
058
BEARER TYPE
NOT PRESENTLY AVAILABLE
Messages BCS (Circuit-switched)
Description
Unassigned number
No route to specific network
No route to destination
Not acceptable for use by switch
Call awarded and being delivered in an
established protocol
Normal; clearing
Called user busy
Called user not responding
User alerted, no answer
Call rejected
Number called has been changed
Non-selected user clearing
Destination out of order
Format invalid or number incomplete
Requested facility rejected
Response to station inquiry
Normal; unspecified
No B-channel available
Call queued
Network Out of Order
Temporary failure
Network congested
User information discarded
Exclusive channel cannot be used
Downloading facility not available
Requested facility not subscribed
Service request incompatible with service
request
Outgoing calls barred
Service operation violated
Incoming calls barred
Bearer capability not presently
available; try again
A
A-1
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