NEC ND-71762(E) system manual Overall Test of Ccis Tie Line Incoming Call

INSTALLATION TEST PROCEDURE

2.1.2Overall Test of CCIS Tie Line Incoming Call

STATION A’

LC

OFFICE A

PBX

(PBX to be tested)

OFFICE B

PBX

STATION B’

LC

START

Seizure of trunk to be tested

Termination of incoming call to station A’ in the self office

Check of speech

Release

When all CCIS Tie Line Trunks have been checked and a fault has been detected

END

Place the trunk to be tested into idle state, and make busy all other trunks.

An incoming call from the distant office terminates to Station A’.

After the call has been answered at Station A’, check the speech conditions including speech level, presence of noise and one-way speech state.

Perform fault localization procedure when a fault has occurred to CCIS Tie Line. (See Procedure A of Paragraph 2.1.1)

If the distant office is faulty, make a request to the distant office for repair.

CHAPTER 5 ND-71762 (E)

Page 52

Issue 2