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.
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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.
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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..
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...
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.
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 preventsdslinterference from voice such as picking up and hanging up the receiver.
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.
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.
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.