Abstract :
The famous words of Alexander Graham Bell on March 10, 1876 were "Mr. Watson ??? come here ??? I want to see you." It was the beginning of a completely new idea. In less than 150 years, the telecommunication world has known a tremendous evolution and revolution; from one-wired-phoneper- village to multiple cell phones per person [http://www.loc.gov/loc/ lcib/9904/bell.html].
