Re: How to identify a DSL Telephone Line

[socko <s@xxxx>]

chasbo@xxxxxxxxx wrote:
> With the need to install a filter on a DSL phone line when an alarm
> system is connected to that line, is there a method that any of you
> use to determine if the line is POTS, a DSL line which is also used
> for voice, or when dial tone is supplied by a Cable company?
>
> Asking the customer is an exercise in frustration, as they in most
> cases don't know.

I do it by listening to the line  on hook with my butt set.  usually
works.  dsl is real noisy.