Call functions29Muting or sending key tonesYou can turn the key tones off or on.Press <Options> and select Mute keys or Sendkeys.Using PhonebookYou can access the Phonebook menu to locate orstore entries.p. 33Press <Options> and select Phonebook.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 the messaging featureYou can create and send an SMS message or accessreceived messages. p. 49Press <Options> and select Message.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.To communicate with answering machines orcomputerised telephone systems, Send keys must beselected.