Butler 3900/Twin/Triple/Quattro
7.6 EXTERNAL/INTERNAL CALL TOGGLE
Possible only if more than one handsets are registered to the base!!
When you are on line with an external correspondent:
1.Press INT
key
2.Enter the number of the internal handset that you want to call, the external call is put on hold.
3.When the internal correspondent picks up, you are on line with the internal correspondent.
4.Press # key, you are on line with the external correspondent and the internal correspondent alternately.
7.7 CONFERENCE CALL
Possible only if more than one handsets are registered to the base!!
You can converse simultaneously with an internal correspondent and an external correspondent.
When you are on line with an external correspondent:
1.Press INT
key
2.Enter the number of the internal handset that you want to call
3.When the internal correspondent picks up, press and hold # key for 2 seconds.
4.If the internal correspondent does not answer, press INT
again to reconnect to the external correspondent
7.8 PREFIX DIALLING
Possible only if the prefix number is stored. (See “§ 9.2 SETUP PREFIX MEMORY” .)
Press and hold
7.9 DISPLAY OF CALL DURATION
If Call Timer is set ON (See “§ 8.5 Activation / Deactivation OF CALL TIMER” .), the call duration is displayed after an incoming call is answered or the last digit is dialled out, in minutes - seconds:
At the end of each call, the total call duration is displayed for 5 seconds.
7.10 MICROPHONE MUTE
It is possible to mute the microphone during a conversation.
Press 
during the conversation, the microphone is then deactivated, you can talk freely without being heard by the calling party.
Mute 
icon is displayed. Press 
again to return to normal mode.
7.11 PAUSE KEY
During Block dialling, you can add a pause between two digits by pressing the Redail/Pause key for 2 seconds.
ENGLISH
Butler 3900/Twin/Triple/Quattro | 13 |
