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There's no question that the jack works for DSL but not for voice-- if I unplug the DSL at the jack in question, and plug in a phone, it doesn't work for the phone.
Anybody know, which colors are used for voice and which for DSL? That could prove it, using a multimeter as mikebw is saying. But that still doesn't help me, since I don't have easy access to the problem splice.
Edit: in the link Carm gave, no doubt that the jack in question is the "unused phone line" that's causing the problem...
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PeterB wrote:
There's no question that the jack works for DSL but not for voice-- if I unplug the DSL at the jack in question, and plug in a phone, it doesn't work for the phone.
Anybody know, which colors are used for voice and which for DSL? That could prove it, using a multimeter as mikebw is saying. But that still doesn't help me, since I don't have easy access to the problem splice.
With the filter per jack DSL that you have, voice and DSL are on the same pair. In your case I would assume Red/Green (Line 1). That's why I was suggesting swapping to the Yellow/Black pair if you know where the other end of the wire is (not the splice), the place where it connects to the other jack, or directly to the incoming phone line.
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Well just because there is a filter on the voice phone jacks doesn't mean that the DSL is on that pair. It is probable, since there would be no reason to do it otherwise, but a filter could be used on a jack with no DSL service and have no adverse affect.
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When I installed DSL kit on my old house I plugged in DSL filters in every jack even if unused. It did fix the problem. If you only have one jack thats a different story.
When you spliced the connections, did you solder them or just twist the wires and cap them?
Joe
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PeterB wrote:
... I could do what space-time is suggesting with a cordless, but I'd also like to have an answering machine hooked up to the line (I don't care for my phone company's voicemail option).
Those panasonic DECT phones, you can control the voice mail from the handset, you do not need to touch the base-station at all. you can listen, record, delete, etc. all from the handset.
Do it. Sound is super clear, and if the range is OK (I don't know how far or what the house is made of), then you'll never have to reach for the base station after you install it.
EDIT: I have this one, although you can get a better deal at frys sometimes or at costco
http://www.amazon.com/Panasonic-Handset-..._6?ie=UTF8&s=office-products&qid=1236547396&sr=8-6
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stop calling me jack 
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Could the DSL filter have gone bad? Did you try swapping the problem DSL filter with a known good filter?
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DewGuy, no, it can't be the DSL filter, because if I plug the phone DIRECTLY INTO the jack, I don't get a dial tone (yet the same jack is working fine for DSL...)
When I spliced the wires, I just twisted and capped. For the splice under the house, that was a nightmare... but that's probably where the problem is.
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I could be wrong, but when I was researching phone wiring about a year ago I'm pretty sure that I read somewhere that not using a DSL filter (or having a bad one) could cause not having a dial tone.
Another idea: when you try the phone from jack to jack are you using the same cord? Reason I ask, I once had a phone cord that my cat chewed on the connector, and when plugged in it only partially worked. If I remember correctly I could receive calls but not get a dial tone to dial out.
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