User`s guide

Troubleshooting
ISDN cause codes
MultiVoice Gateway for the MAX— User’s Guide Preliminary November 23, 1998 A-11
32 Outgoing calls barred. (Outgoing call not possible due to access
restriction that has been installed.)
33 User access busy. (If the total made up of the number of free
B-channels and the number of calling procedures without any
defined B-channel is equal to four, any new incoming calls will be
cleared down from within the network. The calling party receives a
DISC with a cause of user access busy, which indicates the first busy
instance, and a busy signal.
34 Negative CUG comparison. (Link not possible because of negative
CUG comparison.)
37 Communication as semipermanent link not permitted.
48 - 50 Not used. (Link not possible because, for example, RFNR check is
negative.)
53 Destination not obtainable. (Link cannot be established in the
network because of incorrect destination address, services, or
facilities.)
56 Number changed. (Number of B-subscriber has changed.)
57 Out of order. (Remote TE not ready)
58 No user responding. (No TE has responded to the incoming SETUP
or call has been interrupted, absence assumed—expiry of call
timeout T3AA.)
59 User busy. (B-subscriber busy)
61 Incoming calls barred. (B-subscriber has installed restricted access
against incoming link, or the service, which has been requested, is
not supported by the B-subscriber.)
62 Call rejected. (To A-subscriber: Link request actively rejected by
B-subscriber, by sending a DISC in response to an incoming SETUP.
To a TE during the phase in which an incoming call is being
established: The call has already been accepted by another TE on the
bus.)
89 Network congestion. (Bottleneck situation in the network; for
example, all-trunks-busy, no conference set free)
90 Remote user initiated. (Rejected or cleared down by remote user or
exchange.)
Table A-7. ISDN cause codes for 1TR6 switch type (continued)
1TR6 Code Cause