SMS explained-
send free sms
Short message service (SMS) is
a service available on most digital mobile phones that permits
the sending of short messages (also known as text messages,
or more colloquially texts or even txts) between mobile phones
and other handheld devices. SMS was originally designed as
part of the GSM digital mobile phone standard, but is now
available on a wide range of networks, including 3G networks.
The first SMS is believed to
have been sent in December 1992 from a Personal Computer (PC)
to a mobile phone on the Vodafone GSM network in the UK.
The message payload is 140 bytes:
either 160 7-bit characters, 140 8-bit characters, or 70 2-byte
characters in languages such as Chinese, Korean, or Japanese
when encoded using 2-byte UTF-16 character encoding (see Unicode).
This does not include routing data and other metadata, which
is additional to the payload size.
for more information go to w2forum
(http://www.w2forum.com)
SMS service is developing very
fast through out the world. In 2001, more than 250 billion
SMS were sent, comparing to the 16 billion sent in 2000. SMS
is very popular in Europe, Asia and Australia. It is so popular
that the term texting (used as a verb) refers to the act of
cell phone users sending SMS text messages back and forth.
In China, SMS is very popular, and has brought service providers
large profit (18 billion SMS were sent in 2001 [1] (http://www.tymcc.com.cn/news/linenews/export.asp?id=1313)).
It is particularly popular amongst
young urbanites. In many markets, it is comparatively cheap.
For example, in Australia a message typically costs between
AUD 0.20 and AUD 0.25 to send, compared to a voice call costs
anywhere between AUD 0.40 and AUD 2.00 per minute. In Singapore,
hundreds of messages can be sent per month for free, after
which messages cost between SGD 0.05 and SGD 0.07 each to
send.
In the US, however, SMS has limited
appeal. Although a SMS usually costs only USD 0.05 (many providers
also offer monthly allotments), many users have unlimited
"mobile-to-mobile" minutes, high monthly minute
allotments, or unlimited service. Moreover, "walkie talkie"
services offer the instant connectivity of SMS service and
are typically unlimited.
New SMS services offer automated
"alerts" sent on a regular basis giving news, weather,
financial information, sporting event scores, and other information.
SMS is also increasingly being
used for "real-world" services. For example, some
vending machines now allow payment by sending an SMS; usually,
the cost of the item bought is added to the user's phone bill.
Because of the limited message
lengths and tiny user interface of mobile phones, SMS users
commonly make extensive use of abbreviations, particularly
the use of numbers for words (for example, "4" in
place of the word "for"), and the omission of vowels,
as in the phrase "txt msg". To avoid the even more
limited message lengths allowed when using Cyrillic letters,
some Russians use the Latin alphabet for their own language.
Predictive text software that attempts to guess words (AOL's
T9) or letters (Eatoni's LetterWise) reduces the labor of
time-consuming input and may make abbreviations less necessary.
A few mobile phones allow long
SMS messages (longer than the abovementioned limits) to be
sent. This is accomplished by breaking up the long message
into shorter messages and adding some code indicating that
the messages should be strung together on the recepient's
phone. It should be noted, however, that this does not count
as just one SMS; it is billed as multiple SMS messages depending
on the length of the message.
Several telecommunication carriers
have recently started offering so called premium rate short
messages, which through higher pricing and revenue sharing
allow companies to be paid for their services by sending a
short message. This is also becoming increasingly popular,
but problems arise when the premium pricing is not advertised.
An increasing trend towards spamming
cell phone users through SMS has prompted cellular service
carriers to take steps against the practice, before it becomes
a widespread problem. No major spamming incidents involving
SMS have been reported as of October 2003, but the existence
of cell-phone spam has already been noted by industry watchdogs,
including Consumer Reports magazine.
You can try these sites to send-
sms message free
http://www.cbfsms.com/
- send free sms text message ! allows you to send text messages
to any UK mobile network for free.
http://www.sms.ac/
- Send text messages to any mobile device worldwide.
http://www.cellular.co.za/send_sms2.htm
- Send Your SMS message To Most GSM networks around the world.
http://cellphones.about.com/library/bl_send_free_sms.htm
- free SMS messages to cell phones in North America,
New to SMS? What is a text message?
SMS is the acronym for Short
Message Service. SMS allows up to 160 characters of text to
be sent or received by a digital mobile phone. Just type your
message onto the keypad of your cellular phone. Think of it
as mini-email.
Text messaging is a SMS (Short
Message Service) that can be made from a mobile phone (cell
phone) to another mobile phone or from and to web based services
such as ICQ [where you don't need a phone to send an SMS].
SMS allows the sending and receiving of a maximum of 160 characters.
You can also send non-text short messages such as ringtones,
logos, cards, calendars, clipart and WAP. More than 20 billion
text messages are sent per month. |
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