ISDN DEFINITY
Extender 2300EU/2100EU
63
COD Failure Messages
The following diagnostic messages are used to facilitate
troubleshooting of ISDN line problems during COD (Call on
Demand) operation, the remote display telephone shows ‘COD
Waiting,’ followed by a message. Table 4-6 contains the possible
COD failure messages.
Table 4-6. COD Failure Messages
Message
Description
Possible Cause
Dialback
Timeout
The unit is in Dialback mode and the
Remote came out of COD, but never
received a Dialback call from the
Switch module.
Switch unit could
not place an ISDN
call to the Remote.
ISDN Conn
Lost
The unit comes out of COD mode
and successfully connects, but the
connection is lost.
Note: If placing an outgoing call the
unit tries to reconnect.
Connectivity
problems with the
ISDN network.
V.42 Failed
The units wake out of COD and
successfully establish a connection,
but were disconnected due to a V.42
failure.
Note: If placing an outgoing call the
unit tries to reconnect.
Data problems on
the ISDN network.
