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What is the difference between BRI & PRI ?
jchauhan1 28-November-2008 05:11:47 AM


www.geekinterview.com/answerdetail/69302 - 9k -
Posted by waqasahmad

PRI and BRI are the ISDN services.

BRI - Basic Rate Interface (3 channels 2B+D)
Two 64 kbps (bearer) B channels
One 16 kbps (signaling data) D channel (for LAPD)

PRI - Primary Rate Interface (T1/E1)
23 (T1) or 30 (E1) B channels
One 64 kbps (signaling) D channel
Posted by justfawad

The major difference between BRI and PRI is data rates.BRI data rate is 128-144kbps and PRI data rate is 2.048Mbps
Posted by fawad

BRI and PRI are the flavour of ISDN
BRI is data rate 144 kbps
PRI data rate 2.048 Mbps
Posted by HamidAliKhan

For details see subsequent link

Posted by Hash007

->BRI (Basic Rate Interface)
->PRI (Primary Rate Interface)
PRI is an industrial ISDN line while the Basic Rate Interface, or BRI, is used to cater to home and small enterprises.
Both Primary Rate Interface and Basic Rate Interface are made up of a number of B channels and D channels
Posted by sagitraz

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