Vertu Constellation Quest Reference Manual page 152

Glossary
PIN
Personal identification number. The PIN code protects your device from unauthorized
use. The PIN code is supplied with the SIM card. If the PIN code request is selected,
the code is required each time the device is switched on. The PIN code must be 4 to
8 digits long.
PIN2
The PIN2 code is supplied with some SIM cards. The PIN2 code is required to access
certain functions supported by the SIM card. The length of the PIN2 code is 4 to
8 digits.
POP3
Post office protocol, version 3. A common mail protocol that can be used for
accessing your remote mailbox.
PUK and PUK2
Personal Unblocking Key. PUK and PUK2 codes are required to change a blocked
PIN code or PIN2 code, respectively. The length of the code is 8 digits.
SIP
Session Initiation Protocol. SIP is used for creating, modifying, and terminating
certain types of communication sessions with one or more participants.
SSID
Service set identifier: SSID is the name that identifies the specific WLAN.
Streaming: Streaming audio and video files means playing them directly from the web
without downloading them first to your device.
UMTS
Universal Mobile Telecommunications System. UMTS is a 3G mobile communication
system. Besides voice and data, UMTS enables audio and video delivery to wireless
devices. When you use your device on GSM and UMTS networks, multiple data
connections can be active at the same time, and access points can share a data
connection. In the UMTS network, data connections remain active during voice calls.
You can, for example, browse the Web faster than previously possible while
simultaneously speaking on the phone.
UPIN
PIN code used on UMTS networks.
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UPUK
UPIN Unblocking Key. UPUK code is required to change a blocked UPIN code or
PIN2 code. The length of the code is 8 digits.
USIM
SIM card used on UMTS networks.
USSD command
A service request, such as a request to activate an application or configure various
settings remotely, that you can send to your operator or service provider with your
device.
VoIP
Voice over IP technology. VoIP is a set of protocols that facilitates phone calls over an
IP network, such as the Internet.
VPN
Virtual private network. VPN creates a secure connection to compatible corporate
intranet and services, such as email.
WAP
Wireless application protocol. WAP is an international standard for wireless
communication.
WEP
Wired equivalent privacy. WEP is an encryption method that encrypts data before it
is transmitted over WLAN.
WLAN
Wireless local area network.
WPA
Wi-Fi Protected Access. Security method for WLAN.
WPA2
Wi-Fi Protected Access 2. Security method for WLAN.