Tuesday, March 22, 2011

...HOW SMS WORKS??...

~mObile phOnes~

do you ever had these gadgets? 
I'm sure you all have it... 
without these gadgets, life is meaningless...
Wow, is that true? 
Ermmmm, I think the answer is 'YES'




but I don't want to talk about those gadgets....
the main point here is..
when you text message to people..








did you really know how the SMS been sent to the mobile phones?
and why the SMS takes time to been sent to the recipient??
here it is...
even you are not talking to your mobile phone..
the information that you send & receive are move through the...


~ CoNTRoL CHaNNeL~


1st reason...
your mobile phone system knows which mobile phone is in...
to change cells as you move around...
2nd reason...
control channel used for call setup..
when people calls you..









the tower sends message to your mobile phones over control channel..
then..
 it tells your phones to play ringtones
&
the tower gives a pair of voice channel frequencies to use for call


~ CoNTRoL CHaNNeL~


..also..
provides pathway for SMS messages



when people send you an SMS...



it flows through this pathway..
message -> SMSC -> tower-> your mobile phone (as a little packet of data)

it is same when you send a message..








the pathway...
your mobile phone -> tower -> SMSC-> its destination





Diagram of the path of an text message
HOW SMS WORKS?




that's all for now..


see you in the next topic!!



BYE2!!



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