I saw a great post by Zach Dennis on the GRLUG list today, so I thought I’d render it here:
>Just curious, what is the primary reason that people use T1 lines
>today rather than DSL?
T1’s tend to have a higher quality and reliability then DSL(both aDSL and sDSL) lines. The T1 speeds are fixed and aren’t determined by the distance from the CO, whereas with DSL lines this distance plays a big factor. DSL speeds are most always at “best-effort” and unless you live next door to the CO you typically get about 50% of what the speed is promoted at. T1’s don’t
have this distance limitation.
Also T1’s are FCC regulated and the FCC states that their must be a one hour
response from the provider once a trouble ticket has been opened. DSL lines
dont get this lucky! And the FCC also mandate certain minimum costs, quality
levels on the lines and reliability.
DSL is great because it is much cheaper in cost, but DSL lines aren’t as
reliable and there are no “regulations” to say that they have to be. DSL may
work great for hosting a website or two, but if you throw on an ftp server,
email server, maybe some vpn capabilities for your home-office employees
then it may be time to upgrade to a T1.
In the end it’s all about finding what works best for you business! Most
telco’s offer the ability for you to upgrade from a DSL line to a Fractional
T1 or a T1 w/o breaking contract.