Samsung SGH-P735MSATMB - Manual (Page 186)

Glossary
185
Multi-party calling
Ability to establish a conference call involving up to five
additional parties.
Phone password
Security code used to unlock the phone when you have selected
the option to lock it automatically each time it switches on.
PIN (Personal Identification Number)
Security code that protects the phone 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.
Proxy server
A proxy server resides between a Web client, such as a web
browser, and a real Web server and acts as an intermediary
between them. When some people browse a web site, their
browser is not actually connecting to the web server. The
request from their browser goes to a proxy server, and the
proxy server makes the request to the web server. A proxy
server can improve performance for groups of users because it
cache the results of all requests for a certain amount of time. If
a user requests a web page that it already loaded for another
user, it reloads the page instead of forwarding the request to
the Web server, which can be a time-consuming operation.
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 the service provider with the SIM card.
Roaming
Use of your phone when you are outside your home area (when
traveling for example).