Cordless Phones Cause Interference

In one office, when the cordless 2.4ghz phone is used, the wireless network hiccups, the connection is lost temporarily. Turn off the cordless phone, wireless is back. Change cordless phone channel while talking the wireless network works. I have changed the channels on the wireless (802.11b/g) setup to 11, 10, 6, 7, and 3. I guess, I have more channels to try. The security level of the routers does not matter, wep, none, wpa, same difference, the interference is there.

I've seen the following solutions and wanted to get some feedback:

1) purchase a 900mhz cordless a corded phone (the 900mhz cordless phones are easily listened in on, not secure. Is this true?)

2) switch channels on the 802.11b/g equipment (have more channels to try, I have tried 5 of them to no avail)

3) purchase 802.11"a" setup (not a good one, current network cards are "b" and "g")

4) purchase another5.8ghz cordless phone (did this, still some issues; my

5.8ghz cordless phone does not really transmit at a 5.8ghz band, supposedly 2.4ghz is still used)

5) move 2.4ghz cordless phone/base away from router/wireless access point (did this, this solution did not work)

6) purchase a different brand of wireless router (some brands have less interference. I've read articles on some brands being better than others)

What else should I try? Does the Belkin Pre-N solve anything?



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The analog ones are easy to listen to. Digital is better, Digital SS is probably secure enough for consumer calls.

Channel 1, 6 and 11 are isolated from each other. The others overlap.

Yep. Some 5.8 phones use 2.4 for the return channel.

Reply to
Clark W. Griswold, Jr.


It's not a good idea to use 2.4GHz cordless phones when you have

802.11b/g installed. I would strongly suggest using 900MHz cordless phones instead. In the technical manuals on 802.11, it specifically states to avoid the use of 2.4GHz cordless phones.

I assure you ALL cordless phones can be monitored independent of frequency, as there are plenty of VHF/UHF/SHF receivers and monitoring equipment available. Spread spectrum phones, on the othe hand, certainly provide more security than single channel (or single- frequency) phones. If you truly want security, corded phones are your best answer.

Remember (and, many consumers simply don't understand this), a cordless phone, regardless of what frequency it operates on, is a radio. It is a UHF/SHF transceiver (transmitter/receiver), and thus, signals can be received by anyone who owns a receiver capable of receiving those frequencies. Obviously, some systems use encryption, which provide significantly more security.

The NSA (National Security Agency) monitors certain telephone traffic



Reply to
Don Allen

Ive got a horrible feeling that this is the cause of my dropped connection problems lately. Ive had two computers linked via 802.11b/g wireless network adapters for some time and I have recently purchased some new cordless phones for home oblivious to the possible interference issues. If this is the cause of dropped connections is there anything I can do without buying another new set of phones?

Reply to

On Wed, 3 Nov 2004 20:55:21 -0800, Smith spoketh

Get a "802.11 friendly" 2.4GHz phone. These are usually labeled "DSS" or "Digital Spread Spectrum". I've had a VTech 2651 for a while now, and it never interferes with my wireless network.

Lars M. Hansen

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Reply to
Lars M. Hansen

Dunno, but my wirelass phone is on the 900mhz band.

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