Nortel Meridian 1 Planning, Installation And Operating Instructions page 526

Possible cause
Defective trunk
equipment
Defective NTMW01
SSC card
Option 11C Compact
Chapter 25 — Fault locating and clearing
Action
Make sure the CO equipment or other trunk equipment is not
defective.
If there is no problem with this equipment, go to the next possible
cause.
Use the attendant console to seize trunks and audibly test for dial
tone and outpulsing, or use a maintenance telephone and enter
LD 36
TRK c u
("c u" represents card and unit numbers)
Note: See the Option 11C Compact software guide for information
on using this test.
If you do not hear outpulsing or tones, replace the NTMW01 SSC.
Planning, Installation, Fault Clearing and CCBR Guide
Page 507 of 536