All a meter will tell you is the voltage on the line.  That's around 48 volts when the phone is on hook, 6 when the phone is off hook and 90 when it's ringing.  The multimeter won't tell you anything about the quality of the DSL signal or anything about the DSLAM.

On 07/01/2013 06:31 PM, Michael Havens wrote:
I was having a lady ask me about fixing her dsl. Now.... I'm told that dsl sounds like static  over a buttset; unfortunately, perhaps that was a few years ago because when I test that on my dsl line I hear nothing. So I need to ask, how does one test dsl with a multimeter?
:-)~MIKE~(-:


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