telephony and networks

A telephone network is a telecommunications network used for telephone calls between two or more parties. ... A landline network where the telephones must be directly wired into a single telephone exchange. This is known as the public switched telephone network or PSTN..

When a caller speaks into the microphone, his voice is converted into data that the computer can read. This data is then broken into small data packets for transmission to the user, just like any other data that we send over the internet. .. Internet telephony offers several advantages over conventional voice calls.

Some of the more notable and familiar examples of optical telecommunication systems include navigation lights, flares, semaphore communication and smoke signals. ... Fiber-optics and infrared sensors are also types of optical telecommunication.

Telephony is the technology associated with the electronic transmission of voice, fax, or other information between distant parties using systems historically associated with the telephone, a handheld device containing both a speaker or transmitter and a receiver.