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2. Portal:Telephones - Wikipedia

   en.wikipedia.org/wiki/Portal:Telephones

   The Telephones Portal. A rotary dial telephone, c. 1940s. A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables ...

3. Public switched telephone network - Wikipedia

   en.wikipedia.org/wiki/Public_switched_telephone...

   The public switched telephone network ( PSTN) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony. The PSTN consists of telephone lines, fiber-optic cables, microwave transmission links, cellular networks ...

4. Polebridge to Numa Ridge Phoneline - Wikipedia

   en.wikipedia.org/wiki/Polebridge_to_Numa_Ridge...

   The first sections were constructed in 1911, with additions to connect ranger stations through the 1930s. In later years, FM radio saw greater use and the extent of the phone system declined. The Polebridge-Numa line persisted until 1985, when it was officially shut down, although unofficial use continued through 1988. References

5. Google Pixel Fold review: The challenger that Samsung needs

   www.engadget.com/google-pixel-fold-review-the...

   Despite being Google's first attempt at making a flexible phone, the Pixel Fold brings a lot of interesting design tweaks to the space, which makes it a very worthy rival to Samsung's Galaxy Z ...

6. List of telephony terminology - Wikipedia

   en.wikipedia.org/wiki/List_of_telephony_terminology

   Call waiting - a system that notifies a caller of another incoming telephone call by sounding a sound in the earpiece. Called party - (or callee or B-party) Caller. Calling party. Conference call (multi-party call) COCOT.

7. Royole's FlexPai 2 5G foldable phone costs under $1,500

   www.engadget.com/royole-flexpai-2-foldable-phone...

   Back in March, we got a glimpse of Royole’s second-gen flexible phone, the 5G-enabled FlexPai 2, which takes advantage of the company’s latest OLED panel for its outward-facing flexible screen ...