Re: How to identify a DSL Telephone Line

["Seccon1" <seccon1@xxxxxxxxxxx>]

Cox communications in chesapeak VA can do a digital phone that is separate
from the cable modem connection. I did not believe the customer when he told
me so we killed the main breaker. The Router and hub were fed directly from
the cable and of course power out meant no internet but there was still a
dial tone. All Voip is not equal!


"Robert L Bass" <RobertLBass@xxxxxxxxxxx> wrote in message
news:N9r5j.5039$vB.1316@xxxxxxxxxxx
> <chasbo> 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.
>
> Use the client's phone line to call your cell phone.  While connected,
> remove power from his modem.  If it's VoIP the call will terminate.  If
> it's unfiltered POTS with DSL you should be able to hear the DSL noise.
>
> BTW, I'm currently using Verizon FIOS (fiber optic) service.  I tried
> several alarm panels on it, including a Honeywell Vista-20P, a Napco
> Gemini P3200 and an ELK-M1G.  All were able to communicate using Contact
> ID format without a hitch.  I didn't bother trying pulse formats or SIA.
> I also run a fax machine and a couple of modems and they all work well.
>
> --
>
> Regards,
> Robert L Bass
>
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