Nortel Remote Office 9150 Installation And Administration Manual page 444

Display log definitions
Statistic
LOG NUMBER
DESCRIPTION
SEVERITY
TASK
PRODUCT
CANCELLATION
ACTION TO BE TAKEN
PARAMETERS
DISPLAYED TEXT
420
Definition
56
This log indicates an abnormal failure of a call. Possible reasons
include:
1) sudden link failure on the given medium
2) drop of remote trunks on the 9150/911x side for a 911
(emergency) call
3) sudden primary signaling failure
MAJOR
Network Manager
RLC, 9150, 911x
None
Look for log numbers 42, 43, and 44 to ascertain the reason active
calls were dropped.
1) bandwidth of the call
2) unit ID of remote to which call is connected
3) media on which the call was active at the time of failure
Call of P1 BW got dropped to remote site: P2, medium: P3
Standard 2.0
Remote Office 9150