It is a device which used for taking and reasoning in between two persons is called cellular telephone networks
operating systems
networks that use cellular devices
Mobile Telephone Networks (MTN) Vodacom Cell C Virgin Mobile
A cellular telephone within a cell communicates to the call tower, which in turn is connected to the cellular telephone switching office (CTSO) by the telephone line. The telephone switching Office is then connected to the local telephone system. If the cellular telephone moves from one cell to another, the cellular telephone switching office then hands the connection from one cell to another.
wireless networks accesible from your mobile phone
Cellular telephone signals can travel up to 22 miles.
VoIP works on telephone or cellphone connected to the internet and computer. It uses internet networks and not telephone networks.
The telephone call has been transmitted over data networks/internet.
The base station tower.
Show the formation of a T1 frame and an E1 frame used in telephone networks
VoIP is Voice Over Internet Protocol a telephone system that uses internet networks instead of telephone networks.
how we use Public switched telephone networks to carry all our digital contents