Topcom Butler 4850Twin/Triple/Quattro
When you are calling in hands free mode and you want to change the volume, press the Volume button.
When you use the hands free function for a long time, the batteries will be discharged faster !
5.6Mute function
It is possible to deactivate the microphone during a conversation. Now you can speak openly without being heard by your correspondent.
Press the Mute button 
during a conversation. The microphone will be deactivated. The MUTE symbol 
. appears on the display. Press the Mute button 
again when you want to continue the conversation.
5.7Setting the volume
During a conversation you can set the volume by pressing the Volume button 
. You can set the volume alternatively in between
The hands free receiver volume is also adjustable as above described!
5.8Paging
When you press the Paging button 
on the base unit, the handset emits a ringing signal for 20 seconds. This signal helps you find a lost handset. Press any key to stop the ringing on a handset.
5.9Flash button (R)
When you press the R button, also called flash or recall, the unit generates a line interruption (of 100 ms or 250 ms). 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.
5.9.1 Setting the Flash time
Press and hold the redial button 
for 3 sec. The display will show:
‘Short’ for 100ms or ‘Long’ for 250ms The flash time setting will disappear after 2 sec. from the display
5.10 Setting the ring volume and melody
5.10.1 Handset melody
Press and hold the melody button 
until the current melody is heard. Select the desired
melody 
. Press 
again to confirm the setting.
10 | Topcom Butler 4850/Twin/Triple/Quattro |