Question about NorStar M7208 Corded Phone

1 Answer

Plugging it in

I am installing DSL internet onto my computer. To do so, you need to unplug the phones from the wall and put a filter on the line. When I plugged it back in, all of the lines are lit up, I can't get a dial tone, and I can't release the lines that are lit. None of the buttons worked. I unplugged the filter and plugged the line directly back into the phone jack and got the same result, so I'm sure it's a programming thing, but I don't know hot to fix it.

Can you help me?


Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 201 Answers
Re: Plugging it in

Your Nortel M7208 phone is plugged into your Norstar phone system (not the phone line) You would not be able to use DSL on the same phone port used by the M7208 phone. A filter connected to that port would not solve a DSL issue and could only cause problems with the M7208 phone. You may need to put the filter on the phone lines before they connect to the Nortel phone system... I don't know which system you have or how it is wired up so I am not sure how easy that would be for you.

Posted on Nov 12, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Uniden wall-mounted cordless phone unusable since DSL installed

This happened because there are too many phones sharing the same line with no power amplifiers.
Your phone line is self powered by a small current generated by the phone company (that's why old, wired phones don't need a separate power connection to ring or make calls, it's enough to just plug them in). Each phone you connect to the same line acts as a resistor and drains some of this current. Eventually not enough power is left to carry the signal.
The phone company technician can fix this by installing power amplifiers.
In any case, I would test this theory by unhooking all other phones and checking the cordless ones on their own.
If they work fine, call back the phone company and ask for a "real" repair person..

Jul 13, 2010 | Uniden Cordless Phone

2 Answers

We have just bought a Vista 390 and are not able to get the hands free microphone to work. the speaker appears to work but we are unable to talk .

It took me some time, but I found out from the manufacturer Aastra (1-800-288-1683), that the issue with the Vista 390 hands free speaker is related to your internet connection. If your internet is connected to your phone line, you will need to put at least 2 DSL filters on your Vista phone line. I had to put 3 before I could use the speaker phone feature properly. 1 filter by the wall, one by the phone and had to connect a 3rd one before the two-way speaker feature would work properly. Your phone service provider should be able to provide you with these DSL filters...

Nov 24, 2009 | Aastra Telecom Powertouch/Vista 390 Corded...

2 Answers

I have a hard wired wall mounted telephone (not modular). I need to insert a DSL modular filter into the circuit. What do I need to do convert the hard line to a modular line so I can insert the DSL...

Here's a thought. The DSL filter doesn't have to go on every phone, just the phone line that FEEDS the phone. In old residential, the phone line is looped to each location. If you open up another jack and break the loop, you could possibly find out where the first jack is in your house, put a duplex jack there, feed the DSL modem, and filter all the rest of the lines in the house at that location. Or, go outside, bring the dial tone in on the black/yellow or orange pair, install your DSL modem on that pair, and filter the dial tone back into the green/red pair for the rest of the house.

You can also buy a wall plate with DSL filter in it. Screw your chair closer to the floor before you go here :-)


Nov 13, 2009 | Bell Phones

1 Answer

Cordless phone has volume problems with DSL

For starters that dsl modem should not be filtered.
You should place the splitter directly into the wall jack and place the filter on the side used for the phone. The side feeding the dsl line should not be filtered.
The filter serves 2 purposes. 1 it reduces data noise interference onto the voice line. 2 it prevents dsl interference from voice such as picking up and hanging up the receiver.

Aug 26, 2009 | Uniden Cordless Phone

1 Answer

"Line in use" message on Motorola 450 cordless phones

Call your ip internet provider ATT etc.
your dsl is incorrectly wired

May 28, 2009 | Uniden Cordless Phone

1 Answer

I have just installed DECT2015 cordless phone to replace my old wall mounted cord phone a few weeks ago. We have noticed that when we take or make a call on the new phone it causes our DSL internet to...

Make sure the two lines are not connected at some point throughout the home. Also you may try changing the channel on the handset of new phone as this may be causing interferance this DSL service. Channel buttons may be labeled 'Chan' on phone.

Apr 25, 2009 | Uniden Cordless Phone

1 Answer

Unable to hang up phone. The line is busy/can't make/receive call

sounds like you need a DSL filter, go to page 41 of the manual ("" if you don't have it) good luck!

Feb 12, 2009 | Panasonic KX-TG1033S Cordless Phone

2 Answers

Phones will not release hold when picking up on a different phone

Make sure you have filters on the lines between your DSL and your phones. Use the line out from the back of your modem to split to your phones if you don't have any filters. You may have to take line 2 from the back of the DSL modem to send to all of the phones. This is usually a filtered source and should isolate your phones from the DSL. Put the filter on any other devices that are sharing line 2 too, fax, computer, credit card machine etc.

Jan 19, 2009 | AT&T 944 Four Line Intercom Phone

1 Answer

My phone has been out for some time. Just noise on my phone. the outside plug in works fine, so I assume it is my inside wiring. This morning I unplugged all my phones, and hooked them up one by one. ...

Replace the DSL filter. it is needed to in order to prevent interference between phones and DSL service operating on the same line. Without the installation of DSL filters, high-frequency signals or echoes from analog devices can result in reduced performance and connection problems with DSL service, and the high-frequency signals from the DSL service can result in line noise and other issues for analog devices.

Aug 20, 2008 | Phones

2 Answers

GE 29488

Note: Intercom features are NOT compatible when DSL is installed on line 1.You may need to reconfigure it for dsl internet if it is installed on line 1

May 27, 2008 | GE 29488GE2 Corded Phone

Not finding what you are looking for?
NorStar M7208 Corded Phone Logo

137 people viewed this question

Ask a Question

Usually answered in minutes!

Top NorStar Phones Experts


Level 3 Expert

93922 Answers


Level 3 Expert

56836 Answers


Level 2 Expert

61 Answers

Are you a NorStar Phone Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides