Using a system telephone
Using a headset instead of the handset
You can connect a headset to the switchbox instead of a handset. Please note that the headset must be suitable for the telephone system.
Adjusting the microphone sensitivity
The microphone volume can be adjusted during the call, but to avoid disturbing the call, it may be best to adjust it during a test call following connection. There are 5 volume settings.
Press and hold the mute button for about 3
| 3 sec | seconds until the LEDs start to flash and you hear |
| a tone. | |
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| |
or |
| Increase the microphone volume using the + and |
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| |
|
| reduce it using |
|
| Adjust the microphone volume one level at a time |
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| until you can hear well in the other end. Please note |
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| that too high a level may cause echoes and feedback. |
Press the mute button to conclude setting the selected microphone volume.
The volume setting is saved in the event of a power- failure.