Maintenance Commands and Trouble-Clearing Aids
555-233-123
8-344 Issue 4 May 2002
Drop Reason
(cont’d)
“Pre-AnsDrop” = The call disconnects an endpoint answers.
The network, an endpoint, or a terminal adapter may cause the
disconnect. This drop reason differs from ‘No-answer,’ which
indicates that a 60-second timeout occurs during alerting. In this
case, the call drops before the 60-second timer expires. Some
busy endpoints that are connected through terminal adapters
display this behavior.
“Resource” = MCU cannot provide resources (VC or MMI) when
calls arrive or lose their resources during the call. Calls can lose
resources when they are Out of Service, busied out by craft, or
in use by system maintenance. If the DS1/MMI cable is
disconnected, this drop reason can also occur. If a resource
problem exists when the call arrives, it gets reorder (fast busy)
and is not disconnected by the MCU.
“Password” = The user enters a wrong password or the audio
add-on user does not enter it within the specified time period.
The audio add-on user gets one attempt to enter a correct
password and has about 10 seconds between digits (inter-digit
timing).
“System” = MCU restarts (level 2) disconnect all calls.
“UIN-Inv” = Users enter invalid User Identification Numbers.
“Unknown” = The system cannot determine the disconnect
cause.
“Wrong-num” = The MCU CPTR resources SDN cause values
detect an incorrectly-dialed destination number. See “Dial-out”
for details.
“UCC” = The controller intentionally disconnects the endpoint.
Drop Code
A detail code complementing the Drop Reason. Additional
bonding-related information is available from the supplementary
BONDing Drop Codes described above.
AC Num
Administered Connection Numbers. (1–128) AC numbers can
further diagnose problems 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.
Ports Aud
If the endpoint type is not “UCC,” the VC audio encoder port
(which is always paired to a decoder port) for the channel (only
the first channel). appears together with the ESM data port in
the endpoint’s channel 1 port slot position of the Port
Aud/ESM column. For “UCC” endpoints, the channel 1 port slot
position displays allocated Call Classifier resources.
Ports ESM
Expansion Service Module MMI data port. This field is always
blank.
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