Gigaset S850A GO User Manual page 34

Provider-specific functions (network services)
Conference
Speaking to both participants at the same time.
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During an external call, dial the number of a second participant (consultation call) or accept
a waiting caller . . . then
Initiate conference call:
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Conf. . . . all callers can hear one another and hold a conversation with one another
Return to call swapping:
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End Conf. . . . You will be reconnected to the participant with whom the conference call
was initiated
End call with both participants:
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Press the End call key
Each of the participants can end their participation in the conference call by pressing the End
call key or hanging up.
Activating/deactivating the network mailbox
You can activate and deactivate your network provider's network mailbox.
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. . . use
Activate/deactivate function:
Activate:
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to select Select Services
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Status . . . use
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Send
OK Network Mailbox . . . then
to select On or Off