IBM -4900 사용자 설명서

Model IBM-4900 Top View

Do Not Disturb Key

Call Timer

Clock and Calendar Set ,

\

 

 

 

 

Handset Catch

 

 

Page All Extensions

Handset Cradle

New Call/Message

Mute Key 

Hold Key

Speaker 

Model IBM-4900 Rear View

 Jack

 Jack

DATA Jack

ADAPTER Jack