ND-20292

CHAPTER 4

APRIL, 1990

440.16Callback Request Message

1.ToSet:

Upon receiving call waiting tone, busy tone or no answer when placing an extension call:

l

l

NOTE:

Dial access code (Default: #).

Receive confirmation tone and hang up.

Access code must be dialed within a predetermined time after dialing the extension number.

2.To Cancel:

l Lift handset and receive internal dial tone. l Redial the extension number.

l Restore handset.

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NEC nd-20292 manual Chapter