Voice Function Setting; Flash (Recall) Setting; Dialling Mode (Tone/Pulse); Setting - Geemarc AMPLIVOICE50 User Manual

Voice Function Setting

When the VOICE function is ON, in pre-dial mode numbers 0-9, numbers
held in the call log, numbers held in the phone book and a caller's name
(if recorded, see Phonebook Chapter – Storing Name Recording) will be
announced in the loudspeaker.

Flash (Recall) Setting

Many special telephone services, such as Call Waiting, require a switch
hook signal. For example, if you have Call Waiting, you can put a call on
hold and take a second incoming call on the same line by pressing CALL
WAITING button. Press CALL WAITING again to alternate the between the
two call.
Note: If you do not have any special phone services requiring a switch hook
signal,pressing CALL WAITING might disconnect the current call.
Dialling Mode (Tone/Pulse) Settings
In the US, all telephone exchanges now use Tone dialing. If your phone
does not dial out, it is probably being used from an older private switchboard
(PBX). In this case, the Tone/Pulse setting must be changed to Pulse.
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SETTINGS
Press MENU
Use ▲ or ▼ to select VOICE
Press DIAL to select
Use ▲ or ▼ to select ON/OFF
Press DIAL to select
Press CID to exit