dial tone problems

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 Question by Tuula Salmela posted 05 Jul 2005
 dial tone problems
I have a two line phone and can't get a dial tone unless I press the conference call button first. I bought a new phone and got a dial tone when I first plugged it in. After I hung up the receiver and picked it up again I couldn't get a dial tone. I have another conventional phone which doesn't get a dial tone either. The phones just hum as if the line was left open. We tried all the phones outside and couldn't get a dial tone. The phone company says the lines are fine. They told me that there probably is a short in the equipment. My fax machine works.
I have two cordless phones that work fine in all the jacks. All the phones ring and work for an incoming call. I don't know where to look for the problem. Why should the cordless phones work and not the conventional ones.
Any help you can give will be appreciated.
 Answer by Joseph Golan posted 05 Jul 2005
Dear Tuula,

There could be a number of reasons for what you are describing. I am wondering if it could be as simple as you have split the pairs between the two lines. You do not say if the 2 lines are being delivered to the same jack or 2 different jacks. For right now I am going to assume that they are on the same jack otherwise known as an RJ-14 (2 line version of an RJ-11). The proper wiring for an RJ-14 is shown at this link:
Your line cord (from the telephone base to the wall) must have at least 4 conductors for a 2-line operation. some cords only have 2 conductors which is only suitable for a 1-line telephone.

Please note that line 1 is on the center pins and line 2 is on the next set of pins outward from the center.

Try hooking up only one line at a time to insure that you are not splitting the pairs. Once you get each line to operate independently, then hook up both lines together.

If the case I am assuming is incorrect or you are still having a problem, please repost addressing myself so one of the other experts does not pick this up as a new item.

Joseph Golan, RCDD

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