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D-9
Network signaling
error.
Report if problem
persists.
Selection signal transmission
error (23)
A transmission error has
been detected in the
selection signals by the
Þrst Data Switching
Exchange (DSE).
Invalid information element contents (100)
This cause indicates that the equipment
sending this cause has received an
information element which it has
implemented; however, one or more
Þelds in the information element are
coded in a way which has not been
implemented by the equipment sending
this cause.
Invalid message, unspeciÞed (95)
This cause is used to report an invalid
message event only when no other cause
in the invalid message class applies.
Number dialed is
unreachable.
Report if problem
persists.
Access barred (41)
The calling DTE is not
permitted the connection
to the called DTE.
Possible reasons include
unauthorized access
between the calling DTE
and the called DTE or an
incompatible closed user
group.
n/a
Number dialed
has changed.
Obtain and dial
new number.
Changed number (42)
The called DTE has been
assigned a new number.
Number changed (22)
This cause is returned to a calling party
when the called party number indicated
by the calling party is no longer assigned.
The new called party number may
optionally be included in the diagnostic
Þeld. If a network does not support this
cause value, cause No. 1, unallocated
(unassigned) number is used.
Table D-1: X.21 Call Progress Signals and Q.931 Cause Codes (Continued)
Message Text
X.21 Signal and Code
Q.931 Cause and Code
Summary of Contents for Concorde 4500
Page 1: ...Concorde 4500 Administrator s Guide ...
Page 6: ......
Page 12: ......
Page 18: ......
Page 19: ...Introducing the Concorde 4500 ...
Page 38: ......
Page 39: ...Connecting and ConÞguring Your Network ...
Page 68: ......
Page 69: ...Managing the Dialing Directory ...
Page 79: ...ConÞguring General Options for Your System ...
Page 99: ...ConÞguring and Adjusting the Video and Audio ...
Page 139: ...ConÞguring Ports ...
Page 140: ...This chapter describes how to Set the control ports Set the data ports ...
Page 153: ...Obtaining Diagnostic Information ...
Page 185: ...Resolving Problems ...
Page 202: ......
Page 206: ......
Page 226: ......