SYSTEM OPERATIONS

(e) Interrupt Ringing (IR) Test Procedure

Lift handset

(DT)

Dial access code for designated connection

• Access code is assigned by ASPA command, CI=N, SRV=SSC, SID=17

Dial “999”

(SST)

Hang Up

Bell Rings

Lift handset and answer

(SST)

Hang Up

DESIGNATION

TEST IN PROGRESS

A

A

A

A

SSTIR

ANSWER

SST

ORT

HANGUP

Figure 6-34 Interrupt Ringing (IR) Test Procedure/Connection Diagram

CHAPTER 6

NDA-24300

Page 446

Issue 1

Page 473
Image 473
NEC NDA-24300 manual Interrupt Ringing IR Test Procedure/Connection Diagram