Gigaset GS370 User Manual page 34

Making calls
Consultation, call swapping
¤
Tap Add call
contacts Tap
The current call with phone number is shown at the bottom of the screen, and the call on hold
as On hold.
Switching between calls (call swapping):
¤
Tap On hold . . . The call on hold becomes the active call
Merging two calls into a conference call
One call active, one call on hold.
¤
Tap Merge calls . . . The calls are merged
Ending a conference call:
taking part are displayed
call
Making calls over WLAN
Make calls over WLAN and the Internet instead of the mobile network.
Your mobile network operator supports calls over WLAN and/or using SIP telephony.
Additional charges may apply. Contact your mobile network operator for more
information.
Using a WLAN call function of a mobile network operator:
¤
Phone Tap
the switch
If this option is not available, the function is not supported by your mobile network
operator.
To make calls over WLAN, use the VoIP service from the mobile network operator (SIP):
¤
Phone Tap
You may need to provide more details on the SIP account
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Enter the number for a second person or select this person from the
. . . The call is initiated. The first call is put on hold.
Tap Manage conference . . . The phone numbers of those
Tap next to the number to no longer take part in the conference
Settings Calls
Settings Calling accounts
Enable/disable the Wi-Fi Calling option with
Use SIP calling