How did the connection evolve from the telegraph to the mobile phone?

“Mr. Watson, will you come here and I want to see you”, when Watson announced that he had created his guide, and in 1876 Bill got a patent for his device, to start a rapid deployment.

First phone.

Telephone.

Wireless phones are phones that allow their free use within a limited distance of up to 100 m, the first of which is a signal system that operates on a pair of frequencies (1.7 and 49 Megahs), and at the beginning of the 1980s, wireless phones operated on frequencies within both ranges (46 and 49 megahs), and in the late 1990s they operated within both ranges (902 and 928 MHz), and these phones also used analog signal technology, or digital signal technology, or diffuse technology.

Cell phone.

تعد شركة موتورولا الأجنبية أول شركة مصنعة للهواتف المحمولة في العالم، وقد تم إجراء أول مكالمة هاتفية عبرها في أوائل السبعينات، ثم تبعت موتورولا العديد من الشركات المصنعة الأخرى، مثل: سوني إريكسون، وإل جي، وباناسونيك، وغيرها، كما تم التعرف على الكاميرا كجزء من Cell phone. في عام 1997م من قبل فيليب خان، وفي عام 2007م احتوت 85% من الهواتف المحمولة المصنّعة على الكاميرا.

Main parts of the landline.

The main parts of the telephone are as follows: