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my dreamzSaturday, 28 April 2012
What is ISDN?
ISDN stands f or Integrated Services Digital Network . It is a set of standards used to digitaltransmission of voice and data over already existing telephone line. The ISDN uses themultiplexing t echnique to carry three or more data si gnals at once through the telephone line.The data tran sfer speed of ISDN line is very fast tha n old dial-up connection. ISDNconnections are more useful in applications like videoconferencing, to run online movies andupload and download heavy files. In ISDN line, both ends of connections require the ISDN
modem and a special telephone set for voice communication.
Basically ISDN divides its t otal bandwidth into three channels. The basic two channels senddata at the speed of 64 Kbp s and third one at the speed of 16 Kbps. The 64 kbps channelscarry data, voice, image and movies and 16 Kbps channels carry single information and linkma nagement data. A computer conn ected to ISDN service can use both channe ls. ISDN istwice as fast than a dial-up connection but not much expensive. Its data transmission speedis up to 128 Kbps.
DSL is much easier to install and provides much faster data transfer rate. ADSLconnections are more useful in applications like videoconferencing, to run online movies andupload and download heavy files. This connection is ideal for today business requirements.
Thanks & Regards,
"Remember Me When You Raise Your Hand For Dua"Raheel Ahmed KhanSystem Engineer [email protected]@[email protected] (skype id)
My Blog Spothttp://raheel-mydreamz.blogspot.com/http://raheeldreamz.wordpress.com/
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