cheapbag214s
Joined: 27 Jun 2013
Posts: 18472
Read: 0 topics
Warns: 0/5
Location: England
|
 Posted: Thu 20:42, 25 Jul 2013 Post subject: a data channel |
|
|
How does ISDN work? ISDN is a digital telephone line that is primarily used for Business telephones. ISDN (Integrated Services Digital Network) is a system of digital phone connections which is compatible with the existing (analog) telephone system. ISDN customers can use their phones to make conventional (analog, dialup) voice connections. In addition,[link widoczny dla zalogowanych], ISDN customers can make high-speed digital data connections with other ISDN-capable telephone customers. ISDN allows data to be transmitted and received around the world using end-to-end digital connectivity. With ISDN,[link widoczny dla zalogowanych], voice and data are carried by 64Kbps bearer channels (B channels). Multiple B channels can cooperate to provide higher data rates. Common ISDN installations can easily be configured to use two (2) B channels, providing a true data rate of 128Kbps. In all ISDN installations, a data channel (D channel) handles control signalling at 16 kbps or 64 kbps, depending on the service type. Typical applications include call centres and offices requiring large
The post has been approved 0 times
|
|
