Cordless Phones Cause Interference

Archived from groups: alt.internet.wireless (More info?)

"Smith" <Smith@donotreply.org> wrote:

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

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

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

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

>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)
>

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

Archived from groups: alt.internet.wireless (More info?)

In article <XCiid.75837$bk1.10229@fed1read05>, Smith@donotreply.org
says...
> 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.
>

Smith,

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
24/7.

Don

Archived from groups: alt.internet.wireless (More info?)

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?


"Smith" <Smith@donotreply.org> wrote in message
news:XCiid.75837$bk1.10229@fed1read05...
> 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?
>
> Thanks,
>
> Smith
>
>

Archived from groups: alt.internet.wireless (More info?)

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

>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.
>

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
http://www.hansenonline.net
(replace 'badnews' with 'news' in e-mail address)

Archived from groups: alt.internet.wireless (More info?)

On Mon, 8 Nov 2004 21:52:43 -0000, "Drummerboy"
<steve.wicks@"nospam"dsl.pipex.com> wrote:

>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?
>
>
>"Smith" <Smith@donotreply.org> wrote in message
>news:XCiid.75837$bk1.10229@fed1read05...
>> 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?)

Dunno, but my wirelass phone is on the 900mhz band.
>>
>> 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?
>>
>> Thanks,
>>
>> Smith
>>
>>
>