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ckarmlange
@dslextreme.com
| two phone numbers on one phone line I was told by AT&T that my phone setup is using two numbers on one phone line. The second phone number is used primarily for fax and merchant credit card processing- although we still make and receive phone calls on this line as well. The first line is for making and receiving calls only. DSL was activated on the first phone number, but we had a problem. When we installed a DSL line filter on a phone jack with the splitter for both phone, fax and c/c machine the machines wouldn't work and no dialtone could be heard. There's a lot of static heard on the phone line, and we keep losing DSL sync every couple minutes. Can someone please offer some advice on how we can get this problem fixed? We really don't want to switch to cable, since this could be a problem with the phone line(s) on our side. Thanks | |
|  nickdigger
join:2009-06-13
| Re: two phone numbers on one phone line Sounds like AT+T is trying to squeeze too much out of one copper line. My advice would be to port your voice number to a VOIP provider, and just keep Fax/CC and DSL on your copper. That way, your voice service will run on your internet service (and probably save you money). If you do lots of fax, it's best to keep doing that on POTS (Plain-Old Telephone Service), but voice will work fine over the 'net.
Read the following forum for tons of info:
»VOIP Tech Chat | |
| 
totamak
And they call me nuts?
join:2000-10-24
Los Angeles, CA
 ·DSL EXTREME
| From what you have described, AT&T is using "pair gain" which is a way of multiplexing multiple POTS services on a single pair of copper. The analog pair gain system is incompatible with DSL and will hamper high speed dial-up, but low speed dial-up should work fine (like 14.4k normal G3 faxing and C/C machines). Digital pair gain solves those issue and it's compatible with DSL. I'll bet AT&T has you on an analog pair gain setup (or a screwed up digital)!
Here's some info:
»en.wikipedia.org/wiki/Pair_gain | |
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