Samsung SGH-S400i User Manual page 30

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1. When connected with a teleservice system, press
<Options> and select Send DTMF.
2. Enter the number you need to send and press
<OK>.
Muting or sending key tones
You can turn the key tones off or on.
Press <Options> and select Mute keys or Send
keys.
To communicate with answering machines or
computerised telephone systems, Send keys must
be selected.
Using Phonebook
You can access the Phonebook menu to locate or
store entries.
p. 30
Press <Options> and select Phonebook.
Using SIM services
The SIM service menu is available if you use a SIM
card in your phone. A SIM card provides services such
as news, weather, sports, entertainment, and location
services.
For details, see your SIM card instructions or contact
your service provider.
Making a multi-party call
Use this feature to allow as many as six people to join
a multi-party call, or conference call.
Your service provider must support multi-party calls
for you to use this feature.
Setting up a multi-party call
1. Call the first participant.
2. Call the second participant. The first call is
automatically put on hold.
3. Press <Options> and select Join. The first
participant is added to the multi-party call.
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