Glossary205SDN (Service Dialling Numbers)Telephone numbers supplied by your networkprovider and giving access to special services, suchas voice mail, directory inquiries, customer supportand emergency services.SIM (Subscriber Identification Module)Card containing a chip with all the informationrequired to operate the phone (network andmemory information, as well as the subscriber’spersonal data). The SIM card fits into a small sloton the back of the phone and is protected by thebattery.SMS (Short Message Service)Network service sending and receiving messages toand from another subscriber without having tospeak to the correspondent. The message createdor received can be displayed, received, edited orsent.Soft keysTwo keys marked and on the phone, thepurpose of which:• varies according to the function that you arecurrently using• is indicated on the bottom line of the display justabove the corresponding keyVoice mailComputerised answering service that automaticallyanswers your calls when you are not available,plays a greeting (optionally in your own voice) andrecords a message.
