Cordless phone

T

TopgunB

Member
Joined
Nov 18, 2010
Messages
13
Reaction score
0
I know cordless phones operate at 2.4Ghz and are notorious for interfering with WiFi.
My new cordless phone however causes me to lose my wired ADSL connection. I have put new filters on it --infact even 2 filters in series to no avail. A normal phone does not cause this problem. If I turn off "wireless" in my Netgear wireless router it still causes the same problem. Any ideas besides dump the phone??
 
Perhaps you're misunderstanding how the filters work?

The ADSL can be connected directly on the Telkom line, but the phones and other telephonic devices has to pass through a low-pass filter before being connected to the Telkom line.
The splitter/filter that you get from Telkom, which has 2 ports (1 for ADSL and 1 for the phone), includes a low-pass filter that is used for the phone port, where as the ADSL port is directly connected.

Attaching 2 low-pass filters in series would reduce the amount of noise that the phone might spill into the ADSL frequency bands, but 1 low-pass filter should suffice.
 
I understand exactly how filters and splitters work--have been using them for years. I presume it is ICASA approved as I bought it from a Talkom office.
 
Return them to the Telkom Direct shop as they appear to be faulty. They should NOT interfere with your wifi signal.
 
MickeyD said:
Return them to the Telkom Direct shop as they appear to be faulty. They should NOT interfere with your wifi signal.
Click to expand...
Read the OP carefully:
TopgunB said:
I know cordless phones operate at 2.4Ghz and are notorious for interfering with WiFi.
My new cordless phone however causes me to lose my wired ADSL connection. I have put new filters on it --infact even 2 filters in series to no avail. A normal phone does not cause this problem. If I turn off "wireless" in my Netgear wireless router it still causes the same problem. Any ideas besides dump the phone??
Click to expand...

All that I can guess is that the filters are faulty then - seeing that you know how they work.
 
Pada said:
Read the OP carefully:
All that I can guess is that the filters are faulty then - seeing that you know how they work.
Click to expand...
Oops, my bad!
But I still maintain it is the cordless phone as the OP says that it works 100% with a standard phone.
 
Cordless or standard phone don't make a difference. The filter is to be blamed or the person fitting that filter.
 
...I suggest you place the filter (purchased from a tech shop, non Telkom - seem to work better, if you can get your hands on a BT UK filter even better - normally supplied with Netgear products supplied by Duxbury) as close to the cordless phone as possible and the other on the wall jack.
 
cpu. said:
Cordless or standard phone don't make a difference. The filter is to be blamed or the person fitting that filter.
Click to expand...
+1
If it's connected to the PHONE port of a POTS filter/splitter that actually works as it's supposed to, then it doesn't matter what phone you use... in fact from my testing you can even completely short circuit the line pair after the splitter and it won't affect your DSL (in contrast, if you had to short circuit the line before the filter, it will immediately break the DSL signal too and I don't think Telkom would be too happy either XD). As for the wireless 2.4 signals affecting the DSL frequencies on the line, that's impossible lol... assuming you did connect everything up properly, then it must surely be a faulty filter as mentioned above xD
 
The Answer--feedback

Ok guys here is the solution. I suspected the cable from my phone to the computer which is in another room might be faulty. Grabbed a Telkom guy from the side of the road for a "private job" he brought his cable tester along = crosstalk, attenuation all that stuff was wrong. New 10 metre cable and connectors and the problem is cured!!
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X