Rob Malpass wrote:
> Evening all
>
> Does anyone know how ADSL broadband works with phone extensions?
>
> I have two phone points on the same BT line. Trouble is - the
> extension has been very professionally fitted - there's no indication
> as to which is which (i.e. which is the master socket and which is the
> slave). There's no socket coupler fitted to either point and the
> cable runs under the floorboards - and the wife won't let me investigate!
>
> As such, which (if not both) do I need to fit the microfilter(s) to?
> And if I only fit a filter to one, will the other be usable for calls?
>
> Hope I've explained that clearly enough - and sorry if this is ADSL
> for beginners but I'm stumped.
>
> Cheers
> Rob
Rob, the master socket has a capacitor and resistor for the ringer
circuit. Slaves do not. The microfilter is only for telephones so your
voice frequency doesn't reach the ADSL multiple frequency bands. So you
only need a micro filter where you have a telephone/fax fitted.
John.
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