Pantech C600 User Manual page 88

continuous connection to the Internet for mobile phone and computer users.
It is based on the Global System for Mobile Communication (GSM) circuit-
switched mobile phone connections and Short Message Service (SMS).
GSM (Global System for Mobile Communication)
International standard for mobile phone communication, guaranteeing
compatibility between the various network operators. GSM covers most
European countries and many other parts of the world.
MMS(Multimedia Message Service)
Network service sending and receiving messages to and from another
subscriber without having to speak to the correspondent. The Message
supports presentation of various media types, such as full color images and
polyphonic ringtones.
Multiparty Calling
Ability to establish a conference call involving up to five additional parties.
PIN (Personal Identification Number)
Security code that protects the phone/SIM against unauthorized use. The
PIN is supplied by the service provider with the SIM card. It may be a four
to eight-digit number and can be changed, as required.
PUK (PIN Unblocking Key)
Security code used to unlock the phone when an incorrect PIN has been
entered three times in succession. The eight-digit number is supplied by
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the service provider with the SIM card.
Roaming
Use of your phone when you are outside your home area (when travelling
for example).
SIM (Subscriber Identification Module)
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 SIM card 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 can be displayed, received, edited or sent.
Soft Keys
Two keys ([Left Soft Key], [Right Soft Key]) marked on the phone, that:
• vary according to the function that you are currently using
• are indicated on the bottom line of the display just above the
corresponding key.
Voice Mail
Computerized answering service that automatically answers your calls