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This particular device was involved in a landmark United States regulatory decision related to telecommunications.In a twelve-year prior decision from 1956, a court had ruled in the Hush-A-Phone case that devices could mechanically connect to the telephone system (such as a rubber cup attached to a phone-company-owned telephone) without the permission of AT&T.
An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA, formerly known as the Commercial Mobile Alert System (CMAS), and prior to that as the Personal Localized Alerting Network (PLAN)), [1] is an alerting network in the United States designed to disseminate emergency alerts to mobile devices such as ...
When writing a telephone number with the area code, the area code and subscriber number is separated with a hyphen. Examples: A number 2xxx xxxx in Kuala Lumpur: 03-2xxx xxxx; A number 2xx xxxx in George Town, Penang: 04-2xx xxxx; A number 2xx xxxx in Johor Bahru, Johor: 07-2xx xxxx; A number 2x xxxx in Kuching, Sarawak: 082-2x xxxx
Another approach to reducing SMS spam that is offered by some carriers involves creating an alias address rather than using the cell phone's number as a text message address. Only messages sent to the alias are delivered; messages sent to the phone's number are discarded. A New York Times article provided detailed information on this in 2008.
A number of pure digital wireless microphone systems do exist, and there are many different digital modulation schemes possible. Digital systems from Sennheiser, Sony, Shure, Zaxcom, AKG and MIPRO use the same UHF frequencies used by analogue FM systems for transmission of a digital signal at a fixed bit rate.
Microsoft released wireless earbuds in 2019 that feature a "dish-looking apparatus" on the outside for touch interactions. The earbuds can also live transcribe a PowerPoint presentation from a connected computer. [35] Like the aforementioned headphones, these are compatible to Bluetooth.
In the U.S., Federal Communications Commission (FCC) regulations prohibit the use of mobile phones aboard aircraft in flight. [1] Contrary to popular misconception, the Federal Aviation Administration (FAA) does not actually prohibit the use of personal electronic devices (including cell phones) on aircraft.
E911 Phase 1: Wireless network operators must identify the phone number and cell phone tower used by callers, within six minutes of a request by a PSAP. E911 Phase 2: 95% of a network operator's in-service phones must be E911 compliant ("location capable") by December 31, 2005. (Numerous carriers missed this deadline and were fined by the FCC ...
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