Notes
52
code three times in a row, the SIM card will lock. To
unlock, you must enter the Personal Unblocking Key or
“PUK” code that came with your SIM card.
Pre-pay
. Means “no rental charges”. Basically you top
up your account by buying vouchers or by buying talk-
time over the internet via your credit card.
PUSH.
Push is a technology that will allow a network
to send you non-requested messages via WAP, e.g.
advertisements or news.
Roaming.
Roaming is the technique that allows
subscribers to move from one cell to another or from
one network to another without affecting the call.
SAR.
Specifi c Absorption Rate is a measure for the
radiation assimilated in the body from the antenna
emission. European Standard EN 50361 specifi es safe
SAR value to be max. 2.0 All
O2
phones are well below
this value.
SIM.
Subscriber Identity Module or SIM is the little gold-
plated plastic card that you get from your network
operator and which holds the unique data the network
needs to identify your phone.
SMS, EMS and MMS.
Short Messages System is a mobile
telephone protocol that makes it possible to send short
text messages over the mobile network. SMS Class 0
messages are not stored in memory, but overwritten
by the next SMS. Enhanced Messaging Service or EMS
includes attaching graphics or sound to your message,
MMS or Multi Media Messaging also includes photos,
video and music.
URL.
Uniform Resource Locator or URL is an address
system used on the Internet. All homepages have a
unique URL, allowing browsers to distinguish one from
the other. An URL always starts with the text string:
http://
followed by the address. Mobile Internet URLs
also comprise the syllable
wap
, e.g.:
wap.address.com
WAP.
Wireless Application Protocol or WAP is a standard
that allows you to access parts of the Internet, known
as “Mobile Internet” via your cell phone. Using WAP
will open a multitude of services to you, i.e. news
and weather forecasts, ordering services and goods,
accessing databases and more. The services available
are increasing rapidly.
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