Nortel Networks P0857846 사용자 설명서

User Preferences / 107

P0857846 Issue 02

Norstar-PLUS Modular ICS 2.0 System Coordinator Guide

Either nothing is stored on the button or you 
have just cleared the button by pressing 

CLR

.

The button is occupied by the Handsfree 
feature. You cannot store a feature or 

number on it.