NEC nd-20292 manual 500-6 500-7 500-8, Index Table Condition System Down, Partial Operations

INDEX TABLE

CONDITION

A. SYSTEM DOWN

1.No Internal Dial Tone To Any Multiline Terminal or Single Line Telephone.

2.No LED or Display Indications on Any Multiline Terminal.

3.No System Tones Are Available.

B. PARTIAL OPERATIONS

1.Radio Frequency Interference (RFI).

2.Central Office Line Problems:

a.Intermittent ring Problems.

b.Calls Dropping.

c.No Outside Dial Tone Access.

d.CO Signaling Problem.

3.Multiline Terminal Problems:

a.Terminal Function Problem.

b.Ringing Problems.

c.Dial Tone Access Problems.

4.Single Line Telephone Problems:

a.No Dial Tone Access.

b.Ringing Problem.

c.No Dial Access To Features.

5.Low Volume Problems.

6.External Paging Problem.

7.Station Message Detail Recording (SMDR) Problems (No Call Accounting System)

FLOW CHART

NUMBER

AI

A2

A3

Bl

Cl

c2

c3

c4

Dl

D2

D3

El

E2

E3

Fl

Gl

Hl

ND-20292

CHAPTER 5

APRIL.1990

PAGE

NUMBER

500-6

500-7

500-8

500-9

500-10

500-11

500-12

500-13

500-14

500-15

500-16

500-17

500-18

500-19

500-20

500-21

500-22

500-5