VTech GEMINI User Manual page 27

Alternating between calls (brokering)
If you have two calls at the same time (one call on hold), then you may want to switch between both calls without ending either of the
calls (brokering).
You have two calls, one of which on hold.
Simply press the «Brokering» softkey to alternate between both calls.
Simply press the talk key to end one of the calls. You are automatically
connected to the remaining party.
Note Remember that brokering between external calls is performed in the
telephone network (supplementary network service). This means that you
will have to verify that this service is available from your service provider
and that the correct control codes are programmed in your Vtech GEMINI
(refer to page 45).
Three-party conference calls
If you have two calls at the same time (one call on hold), then you may want to connect all parties in a so-called 3-party conference
call.
You have two calls, one of which on hold.
Simply press the «Conference» softkey to enter into a 3-party conference call.
Conduct your conference call now.
Press the «Single» softkey to split up the conference call in individual calls
again.
By pressing the talk key in the middle of a conference call, you disconnect
yourself from the conversation and both remaining parties are automatically
connected (call transfer).
Note Remember that setting up a conference call between external parties is
performed in the telephone network (supplementary network service). This
means that you will have to verify that this service is available from your
service provider and that the correct control codes are programmed in your
Vtech GEMINI (refer to page 45).