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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-448DID-TRK (DID Trunk)
10
i. Rotary dial rate above 12 pulses/sec – Less than 75 msec between two
successive breaks.
1 – Verify trunk administered interdigit-timing parameters.
2 – Refer problem to CO.
j. Digit detection – Co is starting new rotary dial digit within 150 msec of
previous digit.
1 – Verify trunk administered interdigit timing parameters.
2 – Refer problem to CO.
k. Loop current active – CO not releasing trunk after PBX disconnect. Occurs
when the PBX end drops first and the CO does not release the trunk within
four minutes.
1 – Verify the interface to the network with a hand telephone set. If calls
are placed correctly, then refer problem to the CO.
2 – If unable to place calls or this equipment is not available, check the
status on port using the status trunk command. If active but not
connected, disconnect bridging clips at the network interface. Check
status on the trunk. If trunk went idle, then replace clips. If trunk is still
active but unable to place calls, refer problem to the CO.
l. Late CO trunk release – This event only happens after the occurrence of
Error Type 513. The CO released the trunk four minutes after the PBX
dropped the call. This event decrements the severity (error count) of Error
Type 513, or may mean the problem related to Error Type 513 has been
fixed.
1 – Verify that Error Type 513 does not occur again. Refer to Error 513.
m. Incomplete Dial timer expired. This error applies only to the TN459.
Problem with incoming dialing stream. Refer problem to the CO.
System Technician-Demanded Tests:
Descriptions and Error Codes
Always investigate tests in the order presented in the table below when
inspecting errors in the system. By clearing error codes associated with the
DID-TRK Loop Around and Conference Circuit Test,
for example, you may also
clear errors generated from subsequent tests in the testing sequence.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
NPE Crosstalk Test (#6) X ND