Roaming
Use of your phone when you are outside your home area (when traveling for example).
SDN (Service Dial Number)
Telephone numbers supplied by your network provider and giving access to special services, such as voice mail, directory inquiries, customer support and emergency services.
SmartChip
Card containing a chip with all the information required to operate the phone (network and memory information, as well as the subscriber’s personal data). The SmartChip fits into a small slot on the back of the phone and is protected by the battery.
SMS (Short Message Service)
Network service sending and receiving messages to and from another subscriber without having to speak to the correspondent. The message created or received (up to 160 characters long) can be displayed, received, edited or sent.
Glossary 
Patent Information
This product was manufactured under one or more of the following U.S.
patents: 5276765 5749067 6061647
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