DSL point to point connection

Posted on 2005-04-07
Last Modified: 2013-12-14
Is it possible to connect 2 PCs each at a diferent location and their own network? Can I setup 2 DSL modems to call each other and stay connected so these 2 PC's can transfer files back and forth without human intervention? What do I tell the phone company to ensure these 2 DSL numbers can "call" each other. HOw is it similiar to ISDN as far as the "phone numbers" they use?
Question by:murphymail
    LVL 7

    Expert Comment

    DSL is _not_ ISDN.

    ISDN is essentially digital phone traffic. You can call a specfici number, and place a voice or data call.

    DSL is a data stream to the CO. They terminate it and pass the traffic to their network, and eventually the internet. You could put a VPN between the two PC's and send the traffic between the two, but that would be the only secure way to do it via DSL.
    LVL 40

    Expert Comment

    DSL is very similar to a channelized, fractional T1..  ISDN BRI uses SPIDs for 'telephoning' a ISDN Telco switch to connect a line and allow data transfer.  Here are two very good explanations on ISDN and DSL..

    As mentioned, the best way to go about this is to implement a VPN between the tow sites...

    LVL 12

    Assisted Solution

    You order two alarm lines, one to each location. Locations must be connected to the same CO cross connected at the CO, and total distance within 20000 ft.
    There are no numbers. You are just using the wires without any telco services.
    Generic SDSL modems, or dedicated modems work in this configuration.
    ADSL modems do not work in this configuration, since there is no DSLAM.

    Author Comment

    Do both locations HAVE to be off the same CO? Couldn't each CO for each location provide a link?
    LVL 7

    Accepted Solution

    Nope - it's not circuit switched you are looking for - it's direct line wire - always connected. The minute you go to another CO it becomes circuit-switched and you lose the ability to do what public suggested.

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