User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Commands and Trouble-Clearing Aids
Page 8-436status conference
8
Drop Reason
(cont’d)
Pre-AnsDrop The call disconnected before answer by an endpoint.
The cause of the disconnect may be the network, an endpoint, or a
terminal adapter. This drop reason is different from ‘No-answer,’
which indicates that a 60-second timeout occurred while alerting. In
this case, the call drops before the 60-second timer has expired.
Some busy endpoints connected through terminal adapters display
this behavior.
Resource MCU could not provide resources (VC or MMI) when the
call arrived or lost the resources during the call. This could be due to
them being Out of Service, busied out by craft, or being used by
system maintenance. This drop reason could also occur if the
DS1/MMI cable is disconnected. If there was a resource problem
when the call arrived, it would get reorder (fast busy) and not get
disconnected by the MCU.
Password Either the user entered the wrong password or the audio
add-on user did not enter it within the specified time period. Note that
the audio add-on user gets one attempt to enter a correct password
and inter-digit timing for each digit (that is, about 10 seconds
between digits).
System An MCU restart (level 2) disconnected all calls.
UIN-Inv The user entered an invalid User Identification Number.
Unknown The system could not determine the cause of the
disconnect.
Wrong-num This dial-out drop reason occurs when the MCU detects
the wrong destination number was dialed. This drop reason is
detected by MCU CPTR resources SDN cause value. See “Dial-out”
for details.
UCC controller intentionally disconnected the endpoint.
Drop Code A detail code complementing the Drop Reason (see above).
Additional bonding related information may be obtained from
supplementary BONDing Drop Codes described above.
AC Num Administered Connection Number - from 1 to 128. AC number can be
used to further diagnose a problem by combining status conference
information with the status administered connection command and
data stored in the error and alarm logs.
Ports Trunk The data endpoint that the channel is using.
Ports Video The MMI port for the channel.