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Headphone
The “Headset” option, which is presented in order to make use of the telephone
comfortably by a headset, offers three different options as disable, with handsfree and
without handsfree. The headset option should be activated for using the bluetooth
headset, too.
¨ Disable mode is already active when the “headset” option is selected for the first
time. It is employed for canceling the different later options.
¨ When With handsfree is selected, the telephone is picked up through the headset
while it is on hook, by the fast handsfree key. Upon pressing it again, the headset
is turned off and the telephone gets into the HF mode.
¨ When Without handsfree is selected, the telephone is not picked up through the
headset while it is on hook, by the fast handsfree key.
The Bluetooth Profiles supported by ST30 are Handsfree, Headset and Handsfree-
Audio Gateway. The embedded applications of the Bluetooth devices can differ from
device to device, thus the ST30 compatibility problems may occur with these devices.
The detailed information about the compatibility problems could be obtained from the
product company or Karel International Support department.
NOTE: In order to facilitate the headset utilization “Lazy Mode” can be selected too.
Contrast
Display contrast can be determined through this menu by using the navigation keys.
Backlight
This option can be used to turn off or turn on the backlight of the LCD. It is also
possible to turn off the backlight automatically after 10 seconds of idle state.
Enblock
When Enblock facility is not used, the handsfree mode of the telephone is activated
through the first key pressed when it is on hook and each digit is transmitted one by
one. On the other hand, while Enblock facility is used, the telephone can be picked up
only after the entire digits are dialed and they are transmitted in Block.
¨ Enable: Enblock facility is activated.
¨ Disable: Enblock facility is cancelled.
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