VTech VT1050 User Manual page 15

Make a 3-way Conference Call ( For VT1050T only )
The conference call feature allows one external call to be shared with two handsets (in intercom).
The three parties can share the conversation and no network subscription is required.
During an external call:
1. Press and to select INTERCOM.
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2. Press <OK> to select the desired handset to intercom with.
3. The external call is put on hold automatically and the called handset rings.
4. Press on the called handset to establish an internal call.
5. Press and hold on the calling handset to establish the conference call.
Any handset hangs up during a conference call will leave the other handset still in connection with
the external call.
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