Operation handset

3 Press the line key again when you want to terminate the call.

6.6 Mute function

It is possible to deactivate the microphone during a conversation. Now you can speak openly without being heard by your correspondent.

1 Press the mute key.

The microphone will be activated.

2 Press the mute key again to deactivate the mute function.

6.7 Setting the volume

1 Press the volume key during the conversation. You can set the volume alternatively in 5 levels.

6.8 Flash key (R)

When you press the flash key (also called recall), the unit generates a line interruption (100ms of 250ms). It gives you the possibility to use the special services of your telephone provider and/or to transfer calls when you have a telephone exchange.

Setting the flash time

1 Press and hold the redial key for 3 seconds. The display will show:

“S” for 100ms “L” for 250ms

The flash time setting will disappear from the display after 2 seconds.

6.9 Setting the ring volume and melody

Handset melody

 

 

 

1

Press and hold the melody key until the current melody

 

 

 

 

is heard.

g h i

j k l

m n o

2

Select the desired melody (1-9) or enter a number (1-9).

4

5

6

 

 

English

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Topcom 920 manual Mute function, Setting the volume, Flash key R, Setting the ring volume and melody