Topcom BUTLER E450 - Manual (Page 9)

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Using the telephone
3.6 Internal call transfer
Transfer an external call to an other handset.
3.7 Conference 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.
During an external call:
3.8 Handsfree mode
You can speak with your correspondent without picking up the handset .
3.9 Speaker volume during call
3.10 Display 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.
3.11 Microphone mute
It is possible to mute the microphone during a conversation.
1 Press the internal call key.
2 Enter the number of the internal handset (1 to 5), the external caller is put
on hold.
3 When the other handset picks up, press the on-hook key to hang up and
transfer the call.
If the internal correspondent does not pick-up, press the internal call key again
to reconnect to the external caller on line.
4 Press the on-hook key to hang up or put the handset back on the base.
1 Press the internal call key.
2 Enter the number of the internal handset (1 to 5).
3 When the other handset picks up, press and hold the ‘ ’ key.
If the internal correspondent does not pick-up, press the internal call key again
to reconnect to the external caller on line.
4 Press the on-hook key to hang up or put the handset back on the base.
1 Press the handsfree key during a call to activate or deactivate the handsfree
mode.
1 During a conversation, press the up or down key to change the volume
accordingly.
The handsfree volume is also adjusted together with the receiver in the handset as
above described.
1 Press the mute key. You can talk freely without being heard by the calling
party.
“MUTE” is displayed.
2 Press the mute key again to return to normal mode.
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