Nokia E5-00 User Manual page 177

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.
Streamin Streaming audio and video
g 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
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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 required to change a
blocked UPIN code or PIN2
code. The length of the code
is 8 digits.
USIM SIM card used in UMTS
network.
USSD A service request, such as
comman request to activate an
d application or configure
various settings remotely,
that you can send to your
operator or service provider
with your device.
Glossary 177