Nortel Meridian Meridian 1, Planning, Installation And Operating Instructions

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Page 494 of 536 Chapter 25 — Fault locating and clearing
553-3121-210 Standard 3.0 January 1999
Symptom:
Problems placing calls on 2500-type telephones and some
trunks
Several users of 2500-type telephones report trouble placing calls. Other
users may report trouble dialing on certain trunks. A Digitone Receiver may
be disabled. Look up all system messages in the Option 11C Compact
software guide and follow the instructions given. If the fault does not clear,
use this procedure.
Constantly observe and look up system messages as you perform this
procedure.
You may need to replace the NTMW01 SSC card.
Possible cause Action
Disabled Digitone
Receiver Check for disabled Digitone Receiver TNs by entering
LD 34
STAT
If any are disabled, try to enable them by entering
ENLX c u
(“c u” represents card and unit number)
If the Digitone Receiver will not enable, go to the next possible
cause.
Defective Digitone
Receiver Test the Digitone Receiver on the NTMW01 SSC card by entering
DISX 0 and then ENLX 0.
If the Digitone Receiver fails the test, replace the SSC circuit card.
If the Digitone Receiver passes the test, go to the next possible
cause.
Telephone problem Check the telephone with this problem. Make sure that the
class-of-service (DTN) is properly assigned to the telephone and
the telephone is not defective.