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2. PowerSource (phone brand) - Wikipedia

   en.wikipedia.org/wiki/PowerSource_(phone_brand)

   PowerSource, or "hybrid" phones, are specialized cellular devices used by customers of the American telecommunications company Sprint-Nextel. They are distinct from other mobile phones in that they make use of two cellular networks instead of a single one. PowerSource phones currently include the ic402, ic502, ic602 and ic902, all manufactured ...

3. Defense Red Switch Network - Wikipedia

   en.wikipedia.org/wiki/Defense_Red_Switch_Network

   The phone has the four extra MLPP buttons and 48 programmable buttons for access to both secure and nonsecure lines. [ 1 ] The Defense Red Switch Network (DRSN) is a dedicated telephone network which provides global secure communication services for the command and control structure of the United States Armed Forces .

4. Motorola i920/i930 - Wikipedia

   en.wikipedia.org/wiki/Motorola_i920/i930

   In the past, world travellers subscribing to Nextel iDEN Services generally have to carry an alternate phone (i.e. the V180) to roam around the world. With the i920 or the i930, one phone, one phone number can be used at any part of the world which has a GSM network. The phone won't be made available to either Boost Mobile or Southern Linc ...

5. Nextel - Wikipedia

   en.wikipedia.org/wiki/NEXTEL

   Nextel. Nextel Communications, Inc. was an American wireless service operator that merged with and ceased to exist as a subsidiary of Sprint Corporation, which would later be bought by T-Mobile US and folded into that company. Nextel in Brazil, and formerly in Argentina, Chile, Peru, the Philippines, and Mexico, [3] is part of NII Holdings, a ...

6. Field telephone - Wikipedia

   en.wikipedia.org/wiki/Field_telephone

   Field telephones are telephones used for military communications. They can draw power from their own battery, from a telephone exchange (via a central battery known as CB), or from an external power source. Some need no battery, being sound-powered telephones. Telephone linesmen ford Lunga River during the Guadalcanal Campaign of World War II.

7. Sprint Extends Push-to-Talk Capabilities to More Phones ... - AOL

   www.aol.com/news/2012-10-24-sprint-extends-push...

   "At the same time, Sprint Direct Connect Now is the ideal complement to our growing portfolio of rugged, military spec Sprint Direct Connect handsets that our longtime push-to-talk customers have ...