dial tone problems

Cabling-Design.com FREE cabling and networking Helpdesk
icon
 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.
icon
 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:
http://www.levitonvoicedata.com/learning/RJ14C_RJ14W.asp
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.

Sincerely,
Joseph Golan, RCDD

Click here to see the expert's profile
Back to the current page of questions | Back to all the questions
Back to Cabling-Design.com HELPDESK | Ask your question
Residential Cabling Guide

Home Cabling Guide

Finally, an instantly downloadable book that saves you thousands in home improvement dollars! Enjoy living in 21st century technology-advanced home while increasing its selling value and competitive advantage on the real estate market. Whether your cabling is for home office or high-tech leisure, you can wire your home yourself or learn "wirish" to speak with your cabling contractors in their language!

Learn more ...

Please rate this page

Rating: Average rating: Ratings
BadFineGoodVery GoodExcellent