Volume Control; Timer; Redial Function; Mute Button - Doro 550S Manual

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English

Volume control

1. The speaker and earpiece volume may be adjusted during a call using
2. When you have selected the required volume level press OK to save your
setting.

Timer

Within approximately 10 seconds of the connection of a call, a timer will be
shown on the display. The timer is a simple way to help you keep track of how
long the call lasts.

Redial function

The 20 most recently dialled numbers can easily be redialled using
1. Press
, scroll to the desired telephone number using
r
2. Press
the displayed number will now be dialled. To delete or store the
q
number into the phone book press Opt.

Mute button

The microphone can be muted during a call by pressing
activate the microphone.
The display will show z as long as the function is active.

Key lock

This function locks the push buttons on the handset to prevent unintentional
usage.
1. Press and hold N until the display shows
2. To deactivate the key lock press and hold N again.
Calls can still be received even if the key lock is active. When the call is finished
the handset returns to locked mode.
10
Operation
r
/
.
{
}
. Press
again to re-
C
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.
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