Quite often I run into troubled businesses that are having problems and they’re doing something like a Lan-to-Lan VPN tunnel between offices to route ALL traffic to a central location for processing. In today’s modern age most places have access to numerous link selections for deliver of Internet services and even dedicated Metro-E/T1/MPLS etc. What I find sad are the phone companies trying to sell the scam “Business Class DSL” services for businesses because in reality, unlike Cable DOCSIS, your packets aren’t getting any special treatment compared to a residential circuit. I will explain…

I won’t explain DSL in it’s entirety but here is the basics: You have copper lines that run to your business and they are the Telco lines that deliver POTS (Plain Old Telephone Service). DSL utilizes the high frequency parts of the line compared to voice that uses a very low frequency and this is how you’re able to have DSL and phone on the same line with a filter. The wires that run to that little box outside your business run either underground or along a telephone poll to a “DSLAM” (Digital Subscriber Line Access Multiplexer). Basically this thing just receives a bunch of lines, filters out what is voice and what is data and routes the traffic appropriately. Basically, once your traffic hits this point and leave out the “trunk” to the Internet your “business class” service is no different than a residential line.

In Cable services they will set your packets with a QoS setting that allows your packets to be placed in a “Queue” on the outgoing interface that is serviced first and allocated more time to deliver and usually a higher percentage of the overall link speed. This is why they have to register the MAC address and a business class setup takes a lot longer than a residential class setup for cable.

Please, don’t buy into the scam of “business class” DSL as it doesn’t exist. About the only thing it can give you is a static IP and perhaps, maybe, better customer service that is only marginally better than typical residential service.


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