NEC NDA-24300 manual Reporting Fault to NEC, Fault Reporting Method

SYSTEM MAINTENANCE OUTLINE

START(A)

Check

(C)

When

(E)

Check

(F)

When

(F)

When

(B)

(D)

Check

(G)

(G)

END

Figure 2-25 Recovery Procedure Example

4.REPORTING FAULT TO NEC

When the cause of a fault is uncertain, make note of the situation involved and report it to NEC. When for- warding faulty circuit cards to NEC, exercise caution to protect from static electricity.

4.1Fault Reporting Method

The following three items must be included in the report without fail:

(1)Faulty situation (reports should be similar to “dial tone is not heard only on individual lines,” “incoming C.O. line calls are not able to be terminated only to a specific ATTCON/DESKCON,” etc.)

•Faulty phenomena

On lifting the handset, dial tone is not heard but side tone is heard, etc.

NDA-24300CHAPTER 2

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