Search results
Results From The WOW.Com Content Network
A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station. A cordless telephone differs functionally from a mobile telephone in ...
S. Satellite Business Systems. SBC Communications Inc. ShoreTel. South Central Bell. Southern Bell. Southern New England Telecommunications. Southwestern Bell Mobile Systems. Sprint Corporation.
Enabling technology for mobile phones was first developed in the 1940s but it was not until the mid-1980s that they became widely available. By 2011, it was estimated in Britain that more calls were made using mobile phones than wired devices. [ 1] The history of mobile phones covers mobile communication devices that connect wirelessly to the ...
The following is a list of products manufactured under the Sony Ericsson brand.Most of the models have been released under multiple names, depending on region of release, currently usually indicated by a letter added to the end of the model number ('i' for international, 'a' for North America, and 'c' for mainland China), but indicated on some (mostly older) models by a slightly differing ...
1980: W.C. Black and David A. Hodges develop the silicon-gate CMOS (complementary MOS) pulse-code modulation (PCM) codec-filter chip, [34] which has since been the industry standard for digital telephony, [34] [40] widely used in the public switched telephone network (PSTN) as well as cordless telephones and cell phones. [40]
PSC 9600 Astro25 6.x Site Controller (Remote Sites) MTC 9600 ASTRO25 Site Controller (Prime Sites) GCP 8000 ASTRO25 Site Controller (Prime & Remote Sites) MZC 3000 SmartZone 4.1 Zone Controller (4.1 Master Sites) MZC 5000 Astro25 7.x Zone Controller (7.x Master Sites)
94 mm × 55 mm × 19 mm (130) Weight. 88 g. Display. Digital: LCD. AMPS (analog): Segment LED, Alphanumeric LED. The StarTAC is a series of mobile phones released by Motorola starting in 1996. It is the successor of the MicroTAC, a semi- clamshell design first launched in 1989. [2] Whereas the MicroTAC's flip folded down from below the keypad ...
This Is What the Internet Looked Like in the 1990s. In less than 60 years, the Internet has become a mainstay in the way we work and live so much so that it's hard to imagine a time when our lives ...