ERROR CODES FOR THE ISDN OPTION
21 December, 2001
2-10
2.2.1 D-CHANNEL LAYER MANAGEMENT
Code
Probable Cause
Action
7-00
Link reset
2
7-01
Link set-up failed because of time-out.
2
7-02
Link release failed because of time-out.
2
7-03
Link set-up parameter error
2
2.2.2 D-CHANNEL, LAYER 1
Code
Probable Cause
Action
7-10
T3 timeout (layer 1 activation error)
1
7-11
No connection on the S0 interface
1
7-12
Deactivated
1
2.2.3 D-CHANNEL LINK LAYER
Code
Probable Cause
Action
7-20
At the start of link set-up, the machine received an unsolicited S (F=1).
2
7-21
At the start of link set-up, the machine received an unsolicited DM
(F=1).
2
7-22
At TEI release, the machine received an unsolicited UA (F=1).
2
7-23
At the start of link set-up, the machine received an unsolicited DM
(F=0).
2
7-24
At TEI release, the machine received an unsolicited UA (F=0).
2
7-25
SABME received at the start of network link set-up
No error
7-26
N200 retransmission error for SABME
2
7-27
N200 retransmission error for DISC
2
7-28
N200 retransmission error for situation enquiry (RR)
2
7-29
N(R) sequence number error
3
7-30
N(S) sequence number error
3
7-31
FRMR received
3
7-32
Non-standard frame received
3
7-33
Abnormal frame length
3
7-34
N201 error; information field N in the I frame exceeded N201
3
7-35
T201 timeout; timeout while waiting for checking
3
7-36
T202 timeout; timeout while waiting for ID assignment
3
