Operation Manual

System and Error Messages 267
0x3304 Error during call set-up to ISDN user [#3304].
A data connection could not be established from the terminal equip-
ment to the remote station called. The call set-up failed on attempting
to establish the data communication channel (B channel). Possible
causes include:
- the B channel requested was not switched through by the switch-
ing station
- the necessary signals (flags) for call set-up were not present.
0x3305 Connection to ISDN aborted (D channel) [#3305].
An existing connection to the NT/switching station was terminated.
Possible causes include:
- an unstable ISDN connection to the NT, possibly caused by:
- excessive cable length
- incorrect cable routing
- faulty wiring connections.
0x3306 Connection to ISDN aborted (D channel) [#3306].
An existing connection or a call set-up in progress to the NT/switch-
ing station was terminated. Possible causes include:
- an unstable ISDN connection to the NT, possibly caused by:
- excessive cable length
- incorrect cable routing
- faulty wiring connections
- user termination of call set-up
- malfunction of the NT/switching station.
0x3307 Connection to ISDN aborted (D channel) [#3307].
An existing connection or a call set-up in progress to the NT/switch-
ing station was terminated. Possible causes include:
- termination of call set-up by the user
- malfunction of the NT/switching station
- error in the Layer 2 protocol.
Meldunge.pm6 27.05.97, 21:05267