Hitachi 3000 - Manual (Page 23)

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Chapter 2
Placing and
Receiving Calls
Calling method
Inputting the telephone number and making a call
1 When making a call, check that the internal line number is displayed on the display
If "Not connected" or "Not registered" is displayed, this phone can not be
used.
2
Enter the telephone number, then press the key.
(When making an internal call, input the internal line number.)
"Sending" is displayed on the display and you can hear the ringer at the other end.
If their name is registered in the contacts list, their name is displayed
above the telephone number.
3 When the other party answers, the call time is displayed.
You can adjust the volume with the and keys.
When you press the key, the phone goes into "mute mode" and the other party
can not hear you at all.
To end "mute mode", press the key again.
4
To end the call press the key.