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  2. Pager - Wikipedia

    en.wikipedia.org/wiki/Pager

    One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. [ 2 ] Pagers operate as part of a paging system which includes one or more fixed transmitters (or in the case of response pagers and two-way pagers, one or more base stations ...

  3. Emergency communication system - Wikipedia

    en.wikipedia.org/wiki/Emergency_Communication_System

    An emergency communication system (ECS) is any system (typically computer-based) that is organized for the primary purpose of supporting one-way and two-way communication of emergency information between both individuals and groups of individuals. These systems are commonly designed to convey information over multiple types of devices, from ...

  4. FLEX (protocol) - Wikipedia

    en.wikipedia.org/wiki/FLEX_(protocol)

    In The Netherlands the emergency services use the Flex-protocol in the nationwide P2000 network for pagers. The traffic on this network can be monitored online. [1]In South Australia the State's SAGRN network for the Emergency Services paging system (CFS, SES, MFS and SAAS) is run on the FLEX 1600 protocol, and can be monitored online.

  5. Motorola Minitor - Wikipedia

    en.wikipedia.org/wiki/Motorola_Minitor

    The Minitor is the most common voice pager used by emergency services in the United States. However, digital 2-way pagers that can display alpha-numeric characters can overcome some of the limitations of voice only pagers, are now starting to replace the Minitor pagers in certain applications.

  6. Land mobile radio system - Wikipedia

    en.wikipedia.org/wiki/Land_mobile_radio_system

    A land mobile radio system (LMRS) is a person-to-person voice communication system consisting of two-way radio transceivers (an audio transmitter and receiver in one unit) which can be stationary (base station units), mobile (installed in vehicles), or portable (handheld transceivers e.g. "walkie-talkies").

  7. Professional mobile radio - Wikipedia

    en.wikipedia.org/wiki/Professional_mobile_radio

    The specification supports up to 1,024 different traffic channels to be used. In this way a base station can support a large number of different mobile stations that are communicating at the same time. However, for small systems with only a few channels, the control channel may also act as a non-dedicated traffic channel.

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