Topcom Butler 4502/Twin/Triple/Quattro
3.7Conference Call
Only possible when more then one handset 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
2.Enter the number of the internal handset that you want to call
3.When the internal correspondent picks- up, press and hold #
4.If the internal correspondent does not answer, press INT again to reconnect to the external correspondent
3.8Handsfree mode
You can speak with your correspondent without picking up the handset. To activate or deactivate the handsfree mode, press the 
key during a call. To adjust the volume, See 4.3 “Speaker volume during call” on page 15.
3.9Display of call duration
The call duration is displayed after 15 seconds, in minutes - seconds. At the end of each call, the total call duration is displayed for 5 seconds.
3.10 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” is displayed. Press 
again to return to normal mode.
3.11 Pause Key
When dialling a number you can add a pause between two digits by pressing the redail/pause 
key for 2s.
3.12 Caller Identification
Caller identification is only available if you have subscribed to this service with your telephone operator.
When you receive an external call, the callers number will appear on the display as the telephone rings.
If the network sends it, or if the name of the caller is in the address book, the caller is identified by his or her name.
The caller identity is replaced by the call duration after 15 seconds in communication. It is still possible to display the caller’s identity after this time by pressing
ENGLISH
Topcom Butler 4502/Twin/Triple/Quattro | 11 |