Switched 56


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Switched 56

A dial-up digital service provided by local and long distance telephone companies. There is a monthly fee and per-minute charge like the analog voice network. For connection, a DSU/CSU is used instead of a modem. Switched 56 uses a 64 Kbps channel, but one bit per byte is used for band signaling, leaving 56 Kbps for data.
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References in periodicals archive ?
VISIT Video uses either switched 56 or ISDN dial-up telephone lines and is also available in a grayscale version.
Physicians and hospitals could gain access to Bassett Healthcare's resources through these POPs via dialup modems, ISDN, or switched 56 kb/s service.
For example, in the United States, the monthly access cost for switched 56 kb/s access at the local level can range from about $80 per month to more than $160 per month just for the local loop.
All other locations are backed up with dial-up modems and switched 56 lines.
Buffalo's police department demonstrates the value of a fresh look at central office data services: CO LAN and Switched 56. CO LAN has been around for over five years, but the name is misleading.
First, because no ISDN link was available from Chantilly to New York (sound familiar?) the demo used two AT&T Accunet switched 56 circuits, for a total of 112 kb/s.
He also says that the current public switched telephone system (PSTN) has the hidden potential to compete strongly for the short-document fax market (alongside high-speed Group 4 digital transmission) and that proponents of digital G4 simply don't mention that the adoption of the required Switched 56 and ISDN lines is not going to be a smooth as was the rollout of fax on the world telephone network.
Dial-up comes with the movement towards Switched 56, which has already been tested by Apple.
As a result, the company may be forced to move to switched 56.
PictureTel video systems over the AT&T Switched 56 network have proven an effective means for senior research-and-development staffers to be briefed on critical project status, and maintain hands-on control.
Switched 56 capability brings up 46 international branch offices--in Europe, the Far East, Australia, Hong Kong, Latin America, and elsewhere.