What could be the problem if you experience interference your telephone line?

Question

My friend has been experiencing very bad interference in his telephone line (which is cordless) with alot of static and such. His line supports the DSL and modem to his computer as well. So now it has affected his interenet connection too. He has filters connected to the telephone jacks and has replaced them with new ones when the interference began, but it has not helped. He has contacted the phone company but they have not help. However, he was told that if he has the base of his phone and the modem in close proximty to each other this would cause the problem. Is this true? What can he do?

Answer 1

With the downsize of pac bell, the phone company is responsible only to the junction box which leads into your place. Inside the box (phillips screwdriver) there is a standard phone jack, You can plug a known good working phone into it. If there is still a problem, then it is the phone company's faulty line.
You should make sure that all connections, from THAT point to ANY phone jack in your place has solid, clean, water-free connections.
Also, using a known good phone, check each jack to see if you still have a problem. Any breaks in the line introduces interference, hence problems
Good luck!

Answer 2

We need to determine where the problem is - and go from there.

Your house wiring may be the problem (a rodent may have chewed the insulation, corrosion may have built up on a connector, etc).

Check the phone company site as it will give you some illustrations on the equipment. The demark is the separation from Telco equipment and yours. You can open it and connect a good working analog phone there (see the web site for pictures. You disconnect the house lead which is connected by a standard jack and plug in the phone. This connects you to the phone line. If the phone quality is a problem call the phone company, tell them what you did, and they need to fix it. If the phone quality is good the problem is on your side and you need to find and fix the problem. This may entail rewiring or just checking for loose connections.

There is also a chance the dsl filter is defective. Remove it and see if the voice quality is ok; if so replace the filter.

You need to use a step by step process to address this.

Answer 3

The fact that your dsl is also being affected tells me it's in the outside plant (cable) and it's the phone companies problem to figure out. Note that the telephone techs are terribly trained and it hasn't changed much over the past few years.

You need to call repair service again and request that they send out an experience person to run the testing. Static is a terribly hard problem to fix, especially if it's intermittent.

Answer 4

cordless phones can recieve interfearance from many places.. if it is too close to anything that transmits a radio frequency, or microwave, or even flourecent lighting...

if your phone is 2.4 ghz and you have a wireless router the two may interfear with eachother.. since phones no longer have a channel button, as they automaticllay change channels every once and a while, to protect security and supposedly for better reception.. you would need to access your routers control pannel http://192.168.1.1 and enter your user name and password... usuallay admin/password is the default combination.. but check your routers user manual, or support section of the manufacturers website for the default password for your router.. once logged into the router change the channel that your wifi operates on... if you do not use any wifi devices, turn the wifi off... while you are there make sure to enable WEP, or WPA security so people can not leech your wifi signal...

all that said and done, you claim that the trouble affects not only the phone, but the DSL as well, and you have eliminated the possibility of it being a bad filter.... double check to make sure that anything aside from a phone also has a filter.. like a directv reciver, or fax machine.. these also need filters... if everything is filtered, and the filters are known to be good...

if your phone company has verified no trouble to the NID (you said they provided no help, so i assume they sent a tech for repair) you may have an inside wiring issue...

get yourself a continuity tester...

seperate your inside wiring at the NID....

test the continuity tester, touch the two leads of the continuity tester together.. it should indicate continuity...

now touch the continuity tester between the green/red wires, or blue wires from your inside wire you just disconnected from your nid... there should be NO continuity, if there is there is a short on the line and your inside wire (or possibly jack, or phone) needs to be replaced... if this indicates continuity, first unlplug everything connected to your jacks.. if there is still continuity open and seperate the wires at your jack, and check for continuity... if it went away change the jack and check again.. if it is still showing continuity, then replace the wire, or use a diffrent pair on the wire, either the yellow/black or orange/white...

if the above test showed no continuity, then connect the continuity tester to one wire from your inside wire, and the other lead of the continuity tester to a good ground (either a water pipe, or electrical ground... if you can not find a good ground, you can use the tip side of the wire with your dial tone on it.. if you are unsure which wire is the tip (usuallay the white stripped wire) run the continuity tester one at a time over each wire... if the test shows no continuity, check the other side of the inside wire the same way... if there is continuity between either side of the inside wire and ground, then there is a ground on the line and you need to change the pair to yellow/black, or orange/white, or replace the inside wire...

or you can always call back your phone company.... if you pay for inside wire maintanace, they should fix your problem for free... if you are not a customer of the phone company who owns the outside plant (Verizon in most of the US now) they will only verify good to the nid... you may need to contact an independent telecom tech in your area... i am in 718.. .but craigslist.org is a good place to find someone near you...

Answer 5

the phone (main base) shld not be place next to your friend's computer otherwise it will create static or interference w/ the phone.also another factor is your friend's location. is she/he living in a high walled house or havily posted homes.interference is caused also by location if there are a lot of obstructions or obstrusions that block the line.also it depends on the tyoe of phone your friend is using. if the phone is a 2.4ghz unit & he/she has a wireless router then tendency is that they will interfere w/ each other or if the unit is plugged in an outlet together w/ other appliance that could also cause static on the phone

Answer 6

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