Is ISDN still used?

RZetlinRZetlin Inactive Imported Users Posts: 155
in Network+
Given to the rise of cable and DSL, is ISDN still used by homes or offices?
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  • NPA24NPA24 Member Posts: 588 ■■□□□□□□□□
    I know at my job we use ISDN lines for video conferencing.
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  • WebmasterWebmaster Admin Posts: 10,292 Admin
    RZetlin wrote:
    Given to the rise of cable and DSL, is ISDN still used by homes or offices?
    Especially since many people use one BRI channel for Internet, and the other for telephone, ISDN will be around for some time. Eventually it will fade out... .. .
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  • lordylordy Member Posts: 632 ■■■■□□□□□□
    ISDN will still be around for quite a while as there are still a lot of place where you can't get either DSL nor Cable.

    Additionally it is often used for backup lines when a leased one goes down.
    Working on CCNP: [X] SWITCH --- [ ] ROUTE --- [ ] TSHOOT
    Goal for 2014: RHCA
    Goal for 2015: CCDP
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  • RZetlinRZetlin Inactive Imported Users Posts: 155
    If a CO is provided for ISDN couldn't the same CO be used for DSL technology?
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  • lordylordy Member Posts: 632 ■■■■□□□□□□
    No.

    Running DSL requires that the lines attenuation does not exceed specified limits. If the line is too long (the CO is too far away from the PoP) you simply cannot run DSL.
    Working on CCNP: [X] SWITCH --- [ ] ROUTE --- [ ] TSHOOT
    Goal for 2014: RHCA
    Goal for 2015: CCDP
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