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A paging system alerts a pager (or group of pagers) by transmitting information over an RF channel, including an address and message information. This information is formatted using a paging protocol, such as 2-tone, 5/6-tone, GOLAY, POCSAG, FLEX, ERMES, or NTT. Two-way pagers and response pagers typically use the ReFLEX protocol. [29]
Personal Communications Services (PCS) A new generation of wireless-phone technology that introduces a range of features and services surpassing those available in analog- and digital-cellular phone systems. PCS provides the user with an all-in-one wireless phone, paging, messaging, and data service. "Glossary of Telecommunications Terms".
In India, mobile numbers (including pagers) on GSM, WCDMA, LTE and NR networks start with either 9, 8, 7 or 1.Each telecom circle is allowed to have multiple private operators; previously it was two private + BSNL/MTNL, subsequently it changed to three private + BSNL/MTNL in GSM; however currently each telecom circle has all four operators including Reliance Jio, Bharti Airtel, Vodafone idea ...
BenQ Mobile: Bankruptcy in 2006, defunct in 2007 Grundig Mobile: Hagenuk Telecom GmbH: insolvency in 1997, mobile phone development and manufacturing business acquired by Telital in 1998 [9] Siemens Mobile: Acquired by BenQ Corporation in 2005 to form BenQ Mobile: Telefunken Italy: Onda Mobile Communication India: YU Televentures: Was a ...
“Mobile phones and electronic devices are generally very safe, and the likelihood of being affected by explosives is exceedingly rare, applying only to a tiny fraction of the global population ...
India's telecommunication network is the second largest in the world by number of telephone users [3] (both fixed and mobile phones) with over 1.19 billion subscribers as of September 2024. [4] It has one of the lowest call tariffs in the world enabled by multiple large-scale telecom operators and the ensuant hyper-competition between them.
As the use of alphanumeric pagers declined in the mid-1990s and cell phone text messaging availability and reliability increased ever since, these well-established alpha-dispatch call centers adjusted their technology to allow live operators' messages to be transmitted to cellular service providers in the same way as to pager service providers.
For example, some systems used two-tone sequential paging to alert a mobile or handheld that a wired phone was trying to call them. Other systems used DTMF. Some used a system called Secode 2805 which transmitted an interrupted 2805 Hz tone (in a manner similar to IMTS signaling) to alert mobiles of an offered call. Some radio equipment used ...