Alpha pager This is especially critical in hospital settings where emergency staff must be able to reliably receive pages in order to respond to patient needs. Yahoo java pager
Many of today's pagers use the FLEX on-air protocol. For example, they are required to be used by UK lifeboat men and retained firefighters. For this reason, older forms of message submission retain their usefulness for disseminating highly-important alerts to users such as emergency services personnel. Since a one-way pager is a passive receiver only (it sends no rmation back to the base station), its location cannot be tracked. Common paging protocols include Telocator Alphanumeric input Protocol (TAP), FLEX, ReFLEX, POCSAG, Golay and NTT. The paged party then had to telephone the control/call centre to collect the message either from an operator or an early voice mail device. On a smaller scale, pagers are sometimes carried by staff in medical establishments, allowing them to be summoned to emergencies. Alpha pager. Pager activation
Pagers also have privacy advantages pared with cellular phones. This can result in pager messages being delayed or lost. Alpha pager. It pre-dates mobile phone technology, being most popular during the 1980s and 1990s, but similarly uses radio transmissions to municate between a control/call center and the recipient. This is especially critical in hospital settings where emergency staff must be able to reliably receive pages in order to respond to patient needs. Many paging work operators now allow numeric and textual pages to be submitted to the paging works via email. Even more recent models included the ability to send messages in a two-way fashion and even included the ability to send and receive email. Other radio bands used for pagers include the 400MHz band, the VHF band, and the FM mercial broadcast band (88-108MHz). |
