PIN Personal identity number. The PIN code protects your device
from unauthorised 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 in 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 in UMTS network.
UPUK UPIN Unblocking Key. UPUK code is require d to chan ge a bloc ked
UPIN code or PIN2 code. The length of the code is 8 digits.
USIM SIM card used in UMTS network.
USSD command A service request, such as request to activate an application or
configure various settings remotely, that you can send to your
operator or service provider with your device.
180 Glossary
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