Technical data

18 Appendix
142
ARGUS 3u plus/3u NT
C) CAUSE-Messages – 1TR6 Protocol
Dec. Cause Description
01
Invalid call reference value Invalid call reference value
03
Bearer service not
implemented
The service is not available in the
central office or at another location in
the network or the service has not been
subscribed.
07
Call identity does not exist Unknown call identity
08
Call identity in use Call identity is already assigned
to a “suspended” connection.
10
No channel available No further B-channel is free
on the subscriber's access.
(only significant locally)
16
Requested facility not
implemented
The entered FAC-Code is unknown in
this network.
17
Requested facility not
subscribed
The requested facility is not available,
because the initiating or the remote
subscriber is not authorized.
32
Outgoing calls barred Outgoing calls are not possible due to
the barring
33
User access busy If the sum of the number of free B-
channels, the number of occupied
B-channels, the number of awarded
B-channels and the number of calls
without B-channel assignment equals
four, new incoming calls will be cleared
from the network. The calling
subscriber receives a DISC with the
cause “user access busy”(= first busy)
and a busy signal.
34
Negative CUG comparison Connection not possible due to
negative CUG comparison
35
Non-existent CUG This CUG (GBG) does not exist
37
Communication link as SPV
not permitted
A connection is not possible, since for
example, the RFNR-test was negative
53
Destination not obtainable A connection cannot be made due to a
wrong destination, service or
supplementary services.
56
Number changed Subscriber-B’s call number has
changed.
57
Out of order The remote terminal is not ready.
58
No user responding No terminal has answered the incoming
SETUP or the subscriber call was
disconnected, it is assumed that
someone is present (Time-out for
ringing T3AA).
59
User busy Subscriber-B is busy
61
Incoming calls barred Subscriber-B has blocked incoming
calls or the requested service is not
supported by Subscriber-B.