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"phone" redirects here. for other uses, see phone (disambiguation) . for the handheld personal computer, see smartphone . a rotary dial telephone, c. s at&t push button telephone made by western electric , model dmg black, a telephone (derived from the greek : τῆλε, tēle, "far" and φωνή, phōnē,
and voice over ip symbols mobile telephone adoption patents see also references further reading external links basic principles schematic of a landline telephone installation a traditional landline telephone system, also known as plain old telephone service (pots), commonly carries both control and audio...
https://en.wikipedia.org/wiki/Telephone