Samsung SGH-X156 User Manual

22Call functionsUsing the menu functionsPress <Options> and select Menu.Switching off the microphone (Mute mode)You can temporarily switch off your phone’smicrophone so that the other person on the phonecannot hear you.Press <Options> and select Mute or Unmute.Muting or sending key tonesYou can turn the key tones off or on.Press <Options> and select Mute keys or Sendkeys.Sending 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. 39Press <Options> and select Phonebook.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 callTo communicate with answering machines orcomputerised telephone systems, Send keys mustbe selected.