Solved

No Dial Tone

Posted on 2004-08-25
2
282 Views
Last Modified: 2013-12-27
Hi folks,
recently purchased a Sitecom external serial connection modem. Installed it etc and it installed no problem. Went to connect and nothing. Tried every check box combo and nothing. Reinstalled harddrive and still nothing. It lights up fine and query modem works ok, but cant connect. Took out the phone lead and plugged into a phone and the line works fine. I noticed that when the line is plugged into the modem and if I go to pick up another phone in the house, I get no dial tone on any of the phones. But when I unplug the cable from the modem, i get the dial tone back. I have insstalled it on win 95.

I also tried it out on win 2000 and getting exactly the same problem.
The lights flicker on it when querying and it seems ok. I tried to use phone dialler but couldnt dial out either. It seems the modem opens the port straight away. i also disabled wait for dial tone and nothing.

Please help!

Regards,
Kwaoc
ps Urgent!
0
Comment
Question by:kwaoc
2 Comments
 
LVL 3

Accepted Solution

by:
Fairco earned 500 total points
ID: 11900270
This is a very common problem, I also encountered it. The problem is that your phone cable has 4 wires, but only 2 of them is actually used. The other two are grounded. Most likely your modem connects the grounded wires with the live ones, therefore causes a short circuit in your phone line. That's why you can't hear dialtone from the other handsets as well, when the line is plugged in the modem.
Use a cable that has only two pins wired in the plug, or cut the unused grounded wires elsehow. The two center pins are the live ones, and the two outer ones need to be cut. The following linked picture shows the perfect cable:
https://owl.tamucc.edu/~mcs/dorms/rj11.jpg
Notice, that the two outer pins are missing, only the center two pins are in place.
0
 
LVL 1

Author Comment

by:kwaoc
ID: 11901539
Hi Fairco,
Just logged in now to check this message. Believe it ornot, I figured out what you just told me about an hour ago. You are absolutely correct as to what theproblem is. I realised this after actually taking a second to just check the cables! Of course I will award you the points as if I had of checked this last night I would have got the problem solved straight away.
Thanks for the help,
Kwaoc
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Join & Write a Comment

This article is a how to to configure a UCS Ethernet-uplink portchannel via the console. It is easy to do and can be done quite quickly. In certain versions of the UCS manager the portchannel has issues coming up and this is a workaround. I am…
Hi there, This article summarizes what you need if you are going to set up your home or small business Network Attached Storage (NAS) to be accessible from the internet. Of course there are configuration differences based on your NAS or router ma…
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…

747 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now