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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
Содержание Concorde 4500
Страница 1: ...Concorde 4500 Administrator s Guide ...
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Страница 19: ...Introducing the Concorde 4500 ...
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Страница 39: ...Connecting and ConÞguring Your Network ...
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Страница 69: ...Managing the Dialing Directory ...
Страница 79: ...ConÞguring General Options for Your System ...
Страница 99: ...ConÞguring and Adjusting the Video and Audio ...
Страница 139: ...ConÞguring Ports ...
Страница 140: ...This chapter describes how to Set the control ports Set the data ports ...
Страница 153: ...Obtaining Diagnostic Information ...
Страница 185: ...Resolving Problems ...
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