Samsung SGH-X427ZSACIN - Manual (Page 54)

Options During a Call
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Call Waiting
You can answer an incoming call while you have a call in
progress, if this service is supported by the network and
you have set the Call Waiting menu (Menu 6.3) to
Activate; see page 102. You are notified of an incoming
call by a call waiting tone.
To answer a call while you have a call in progress:
1. Press the key to answer the incoming call. The first
call is automatically put on hold.
2. To switch between the two calls, press the Swap soft
key.
3. To end a call on hold, press the Options soft key and
select the End Held Call option.
To end the current call, press the key.
Making a Multi-party Call
A multi-party call is a network service that allows up to six
people to take part simultaneously in a multi-party or
conference call.
For further details about subscribing to this service, contact
your service provider.