Samsung SGH-E640 User Manual

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28Call functionsSending a sequence of DTMF tonesDual tone multi-frequency (DTMF) tones are the tonesused in phones for tone dialling.You can send DTMF tones as a group after entering theentire number you need to send or retrieving anumber from Phonebook. This feature is helpful forentering a password or an account number when youcall an automated system, like a banking service.1. When connected with a teleservice system, press<Options> and select Send DTMF.2. Enter the number you need to send and press<OK>.Using PhonebookYou can access the Phonebook menu to locate orstore entries.p. 31Press <Options> and select Phonebook.Using SIM servicesThe SIM service menu is available if you use a SIMcard in your phone. A SIM card provides services suchas news, weather, sports, entertainment, and locationservices.For details, see your SIM card instructions or contactyour service provider.Making a multi-party callUse this feature to allow as many as six people to joina multi-party call, or conference call.Your service provider must support multi-party callsfor you to use this feature.Setting up a multi-party call1. Call the first participant.2. Call the second participant. The first call isautomatically put on hold.3. Press <Options> and select Join. The firstparticipant is added to the multi-party call.