ISDN lines are mainly used for phone usage. It replaces the analog phone that is found in most homes. It has the ability to take just the one phone line, and turn it into two lines.
Here are some differences between broadband ISDN and narrowband ISDN: 1) Narrowband ISDN uses 64 kb/s channel, while broadband ISDN uses 100 mb/s channels. 2) Broadband uses call relay, while narrowband uses frame relay. 3) In narrowband, ISDN information carries narrow frequency, while in broadband, ISDN uses a wide band of frequency.
Digital
ISDN backup line not Fire automatically
ISDN: Integrated Services Digital Network DSL: Digital Subscriber Line
yes, we can but we need terminal adapter to connect with ISDN if ordinary line is used . terminal adapter use to convert non ISDN to ISDN.
Your materials are out of date. No-one much uses Frame Relay or leased line these days, and ISDN has essentially vanished except for maybe a few antique lines. Find something better to study.
first of all isdn is integrated sevice digital netork it is used for all the communications n -isdn and b-isdn are the parts of isdn n -isdn is the first generation isdn it uses 64-kpbs channel and has acircuit switching implementation b-isdn is the second generation isdn it supports uery high data rates 100 and more mbps it supports packet switching
ISDN is dial up lines and PSTN is a broadband line.
Leased line is a permanent fast internet connection. Unlike ISDN If needed you can connect your company with a very fast leased line from 64k - 2MBs while ISDN maximum speed is 128 K. A leased line is an ideal solution for a company who wish to trade on-line 24 hours a day. For users with small capacity demands ISDN offers three distinct advantages over dedicated leased line: Cost. Because ISDN is an on-demand technology, you only pay for the time each B channel is active.
No111currs
Integrated Services Digital Network (ISDN) is a digital, point-to-point network capable of transmitting speeds of about 2Mbps. A computer connects to an ISDN line via an ISDN adapter and uses the same type of wiring as a Telephone wire. The only difference is ISDN can carry analog (voice) and digital signals, so it can be used to connect to the internet. It can be connected by the phone company but it is rarely used as it needs special equipment and is more expensive than other way.
2b + d