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2.4GHz-Friendly Phones?

timothy posted more than 10 years ago | from the phones-are-mostly-bad dept.

Wireless Networking 386

da3dAlus writes "When I first bought my 2.4GHz wireless phone system several years ago, it was a rather new technology, and wi-fi wasn't even on the scene. Now it appears that all wireless phones are on the 2.4 or 5.8 GHz spectrum, and I've got neighbors with wi-fi (with myself included). While checking out new phones recently, I've noticed some are carrying a "802.11 Friendly" sticker. The question is, are there any trully 802.11 friendly phones? Has anyone really ever had a problem with these types of phones interfering with their wi-fi network?"

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900mhz? (4, Interesting)

Anonymous Coward | more than 10 years ago | (#9910201)

Mine 900mhz cordless phone even has spread spectrum. Works great, excellent range.

Gnoppix sucks at display. (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#9910364)

That is all.

"trully"? (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#9910365)

oh timothy, you are teh gayxx0r


Anonymous Coward | more than 10 years ago | (#9910425)

Gnoppix sucks at display.

yoohoo!! (-1)

Anonymous Coward | more than 10 years ago | (#9910204)

no comment

5.8 (1)

cflorio (604840) | more than 10 years ago | (#9910205)

The other question is, will the 5.8 interfere?

Re:5.8 (1)

jayhawk88 (160512) | more than 10 years ago | (#9910291)

Not unless you find a way to run your wireless network at 5.8Ghz.

Re:5.8 (3, Informative)

Glonoinha (587375) | more than 10 years ago | (#9910318)

You mean like the 802.11a wireless networks?

But the first guy hit it right on the head. 900MHz phones are the best bet if you are running a regular wifi network and don't want interference.

Re:5.8 (1)

jayhawk88 (160512) | more than 10 years ago | (#9910399)

Well technically 802.11a runs at 5Ghz; maybe that's close enough to cause interference, I don't know.

But the real question is, considering the speed and price of 802.11g these days, why would you ever choose to run 802.11a?

Re:5.8 (2, Informative)

imp (7585) | more than 10 years ago | (#9910363)

No. 5.8GHz won't interfere with your wireless network. 802.11[bg] is at 2.4GHz, and 802.11a is at 5.4GHz.

trully (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#9910208)

Lives in the f-house, nigg!

I have always had one or more of these wireless.. (0, Flamebait)

Anonymous Coward | more than 10 years ago | (#9910210)

I have always had one or more of these wireless phone without ever encountering any problems. I think this is a non story.

Re:I have always had one or more of these wireless (1)

Gonarat (177568) | more than 10 years ago | (#9910266)

I agree. In fact, I am able to use 802.11b at my sister-in-laws at the same time she is on the phone. The phone is a fairly new 2.4 GHz cordless -- so perhaps that is why it works. BTW I am on channel 6 on the wireless -- not sure of the exact frequency of the phone.

Re:I have always had one or more of these wireless (1)

PabloJones (456560) | more than 10 years ago | (#9910328)

Maybe a small handful of people will have problem with older phones and wireless networks, but I'd be willing to bet that this is just a gimmick to sucker people into choosing their phones over the other guys'.

Look at me, i'm lame! (-1)

Anonymous Coward | more than 10 years ago | (#9910212)

I have to be a loser and shout out FP! though by this time i'm probably like the 35th post (if not more)


Sorry, nothing to contribue to the conversation. I like wi-fi!

Yes, I have (3, Informative)

Lordofohio (703786) | more than 10 years ago | (#9910213)

We had to stop using our brand new 2.4Ghz phones at work because our wi-fi stuff wouldn't hold a signal when the phones were in use. Keep in mind this was 2 years ago, haven't tried anything since.

900MHz (1, Informative)

Anonymous Coward | more than 10 years ago | (#9910214)

Although I'm not sure how many new ones are available today, my 900MHz cordless has never interfered with my wireless network. In fact, it always seems to get better range than my "better" 2.4GHz phones.

Why YES, I have had problems (5, Interesting)

johncel (196614) | more than 10 years ago | (#9910217)

So, I had a linksys wifi router and an AT&T 2.4 gHz phone... They fought like dogs! If the phone rang, wifi was out for at least 5 mins after you hung up. What a pain. I finally just bought a 5.8 gHz phone.

Re:Why YES, I have had problems (1)

bldrake (744022) | more than 10 years ago | (#9910358)

Same problem. Haven't upgraded my phones yet though. I have Netgear wifi router and various cards in my pc's. Royal pain. Gradually switching to Linux ...

Re:Why YES, I have had problems (3, Informative)

prockcore (543967) | more than 10 years ago | (#9910382)

So, I had a linksys wifi router and an AT&T 2.4 gHz phone... They fought like dogs!

I'm willing to bet that the linksys you've got is the first generation BEFW11S4. I had problems with my 2.4ghz phones but when I upgraded to linksys's 802.11g router, all my problems went away.

I'd recommend upgrading because if a 2.4ghz phone causes your router to die, then its likely that your router won't play well with others. If your neighbors get 802.11b/g, your router will die a horrible death.

It doesn't interfere, silly (5, Funny)

Anonymous Coward | more than 10 years ago | (#9910219)

It interoperates. If it finds an open port on your wifi network, it will handover and use VoIP to complete the call.

This saves you money in the long run because VoIP is much cheaper cost-wise than typical cell service.

The main thing is to make sure that the phone is SAR-approved. You don't want those microwaves heating up your neural tissue! :-)

Re:It doesn't interfere, silly (0)

Anonymous Coward | more than 10 years ago | (#9910251)

Heh, my bad.

I thought this was in a technologically advanced country and we were talking about 3G service.

Re:It doesn't interfere, silly (0)

Anonymous Coward | more than 10 years ago | (#9910286)

Ridiculous. Mod parent down.

Re:It doesn't interfere, silly (1)

jayhawk88 (160512) | more than 10 years ago | (#9910307)

Thank you, BOFH.

Re:It doesn't interfere, silly (1)

screwedcork (801471) | more than 10 years ago | (#9910322)

Are the mods here this stupid? He's joking around!

Phones (1)

JelloG3 (621113) | more than 10 years ago | (#9910222)

I have had interferance with a phone to phone, but i have two wireless phones in my house, a cell phone, plus an airport wireless network, and have not had any problems between the phones and the connection of any devices to the wireless hub

um... you haven't specified any of the frequencies (0)

Anonymous Coward | more than 10 years ago | (#9910321)

saying you have all those things means nothing at all if your cordless phones are 900 mhz or 5.8ghz. your cell phone is a non-issue since it operates at 850 or 1800/1900mhz (whatever the US is). wifi operates at 2.4mhz.

Are they nuts?! (5, Funny)

Pan T. Hose (707794) | more than 10 years ago | (#9910223)

24GHz?! Who the hell would need such a fast phone is beyond me! I have a 500MHz AMD in my desktop (Debian) and it works just fine, thank you.

Re:Are they nuts?! (-1, Troll)

gal1264 (470552) | more than 10 years ago | (#9910356)

ARE YOU NUTS? Obviously they left out a dot on the frequency. The frequency your phone transmits on has nothing to do with speed like a processor. Get out of here.....

Re:Are they nuts?! (1)

SkaterGeek (755048) | more than 10 years ago | (#9910434)

Oh, please tell me your kidding, Do you not realize that this is a joke?

Best way to fix the problem... (1)

xneubien (628441) | more than 10 years ago | (#9910224)

I have found that the best way to fix the problem with my 2.4ghz digital s.s. phone and my Airport Extreme is to use a corded phone. And to also use the oven instead of the microwave. I gotta get me one of those "802.11 friendly" phones

Re:Best way to fix the problem... (2, Insightful)

len_harms (455401) | more than 10 years ago | (#9910262)

I found the best way was to get a 900mhz phone. I have yet to find a 'decent' 2.4ghz phone. There is just too much stuff fighting for that space. Plus since 900mhz is 'old stuff' you can get em fairly cheap.

Re:Best way to fix the problem... (1)

bhtooefr (649901) | more than 10 years ago | (#9910327)

Here's [] an 802.11 friendly phone.

It's free for the phone itself, and it can even be cheaper to get one of those over a "802.11 friendly" 2.4GHz cordless phone plus local+long distance phone service if you don't have dial-up, DSL, TiVo, or DirectTV. And, it's (IIRC) 1.9GHz, so you're safe there.

Hmmm (0)

SonicBV (644848) | more than 10 years ago | (#9910225)

I've never had a problem with 2.4GHz phones and Wi-Fi. I guess that's like saying your stapler won't interfere with the operation of your TV.

Interference (1)

L3on (610722) | more than 10 years ago | (#9910230)

I had a 2.4ghz phone that I got about a year ago and it does interfere with my wireless connection. I tried setting the channel of the phone all the way t the highest end of the setting and the basestation all the way down and it helped some. Eventually I got a new 5.8ghz system and it's been alot better, no interference noticable.

v-tech (0)

Anonymous Coward | more than 10 years ago | (#9910232)

I recently bought a pair of 2.4GHz V-Tech phones ($69 for 2) that had a "Wi-Fi Friendly" sticker on it. I use my 802.11 constantly at home (in fact, my whole Internet connection is 802.11b) and I'm yet to have either of them interfere with the other. I'm also posting this wirelessly on the same network.

WiSIP Phone (0)

Anonymous Coward | more than 10 years ago | (#9910236)

Have you looked at VOIP handsets like this? []

Not a myth. (2, Interesting)

genixia (220387) | more than 10 years ago | (#9910238)

My inlaws' 2.4GHz 'phone (sorry, can't recall the brand) totally screwed up their Linksys WLAN until I changed the WLAN channel (now it degrades link quality but doesn't drop it).

OTOH, My Panasonic 2.4GHz 'phone has never interfered with my Netgear WLAN.

I suspect that the 'phone brand has more of an effect than the WLAN brand.

Vtech (5, Informative)

jcostantino (585892) | more than 10 years ago | (#9910239)

We just bought a Vtech 2.4ghz phone system - two handsets, one base w/ answering machine and a base with a charger. The system said "2.4ghz Friendly" and it replaced a Vtech 2.4ghz phone bought earlier in the year (and subsequently killed during a storm) which would knock the 802.11 offline unless I set my AP to channel 6.

I haven't bothered to change the AP to a different channel but so far it's working fine.

Worthy of mention is that the new handsets come with speakerphone and use three NiMH AAA cells instead of a shrinkwrapped battery with a lead. Plus they sound great and I don't have the problem I used to have on the older phone where the microphone was too sensitive and I heard background noise at too high a level in the earpiece.

By the way (2, Informative)

jcostantino (585892) | more than 10 years ago | (#9910260)

Link to the phone: ail.cfm?itemID=1299

Re:Vtech (-1)

Anonymous Coward | more than 10 years ago | (#9910323)

Change the channel of your AP to something other than 6. Then you might just prove your point.

My microwave (1)

geek (5680) | more than 10 years ago | (#9910240)

Kills my wifi. My 2.4ghz phone does not however. Kinda strange.

Re:My microwave (1)

khrtt (701691) | more than 10 years ago | (#9910295)

kills my WiFi...

I'd get an RF meter and check the shielding on the microwave with it. Don't want it to heat *me* when I'm sitting there hungry, watching my yestarday's pizza warm up.

Re:My microwave (5, Informative)

John Miles (108215) | more than 10 years ago | (#9910313)

Household microwave ovens spew a lot of 2.4 GHz energy all over the band (enough that after looking at it on a spectrum analyzer, I no longer feel like pressing my face up to the window to see if the cheese on my pizza has melted yet).

However, they radiate only on alterating half-cycles of the 60 Hz line frequency. There may be a config option in your WLAN hardware's client utility to make it more resistant to microwave-oven leakage by forcing transmission of smaller packets. You'll lose some performance if you enable it, but it should keep your WLAN from going down altogether.

Re:My microwave (2, Funny)

Anonymous Coward | more than 10 years ago | (#9910340)

Thats cuz you are supposed to take your router out of the microwave before use!

2.4 GHz phones == bad idea (5, Informative)

Anonymous Coward | more than 10 years ago | (#9910242)

I've gone back to the older 900 MHz phones since installing a WiFi network at home. The WLAN didn't interfere with the 2.4 GHz cordless phones we had, but the phones knock the network down hard. I haven't heard anything about "802.11 friendly" labels on newer 2.4 GHz phones, but I'd be skeptical. If they work at all, they work by adaptively locating an empty part of the 2.4 GHz spectrum, and around many crowded residental areas, there ain't no such thing no mo'.

You can also get 5 GHz phones, too. Either 900 MHz or 5 GHz is fine, just keep 'em off 2.4 GHz.

Re:2.4 GHz phones == bad idea (1)

bigbigbison (104532) | more than 10 years ago | (#9910298)

I agree. I've never had a bit of problem with my 900 MHz phones. I suspect the only reason they came out with 2.4 GHz phones is to get customers to use the "2.4 gig is bigger than 900 meg, so it must be better!" line of reasoning.

Re:2.4 GHz phones == bad idea (1)

bhtooefr (649901) | more than 10 years ago | (#9910344)

Isn't sound quality better on the 2.4s, but range much shorter?

(greater bandwidth, but shorter signal distance at higher frequency, right?)

My Experience (1)

dborod (26190) | more than 10 years ago | (#9910244)

I had a 2.4 GHz phone that I really like, unfortunately, I also really like my 802.11g base station. They didn't get along and I replaced my phone with an 800 MHz model.

2.4ghz phones not good (1)

p0z3r (626621) | more than 10 years ago | (#9910248)

I set up a lan at my Parents house using some off the shelf Linksys router. For a while my brother's computer would lose connectivity and we could never figure it out. Then just by chance my Parents had their 2.4ghz phone upstairs from their office and when it rang in and they picked up the call, all our wireless computers lost connectivity. It may just be that router that was manufactured, but I'd still watch out for this when planning on implementing your own wifi network.

Wireless phones? (0)

Anonymous Coward | more than 10 years ago | (#9910250)

I still don't have a wireless phone. When the power goes out for the eastern side of north america I prefer to be able to still reach people. Cell phones and wireless phones just can't do that.

Re:Wireless phones? (0)

Anonymous Coward | more than 10 years ago | (#9910336)

When the power goes out for the eastern side of north america I prefer to be able to still reach people.

Then you'd better get into ham radio, or something. Wired phone or not, you can't count on Ma Bell when the shit hits the fan.

Personally, I run my cordless phone on a UPS, so it continues to work fine for an hour or so after the power goes out.

Re:Wireless phones? (1)

WhatAmIDoingHere (742870) | more than 10 years ago | (#9910345)

Cell towers usually have backup power sources. Such as generators. I know that when the power went out in my town I could still use my cell.

Re:Wireless phones? (1)

reiggin (646111) | more than 10 years ago | (#9910433)

I don't know about you, but I have more than one phone outlet in my house. So I keep both. :-/

Problems with wi-fi cards and cordless phones (1)

darin3200 (791186) | more than 10 years ago | (#9910258)

Has anyone really ever had a problem with these types of phones interfering with their wi-fi network?"
I've never actually tried these phones. My 2.4 ghz phone right now is terrible though. If someone calls me and my phone is within 10-15 feet of my laptop it will just kill the wi-fi signal (no very good when you have 695mb of a 700mb linux iso). I would like to see how these phones would work, they could possibly operate on a very high 2.4ghz frequency but I still question how effective this would be. Here is a good little article []
on the issue.

Wireless phones and wifi (0)

Anonymous Coward | more than 10 years ago | (#9910263)

I work on wifi systems all day long, at multiple customers houses. I have seen 2.4 phones cause interference with their wifi, but I usually just change the channel on the router and its fixed

2.4 GHz Seems to be Unfriendly (1)

repruhsent (672799) | more than 10 years ago | (#9910265)

I have an 802.11b networking running on a Netgear MR314 wireless base station. Two Macintosh clients use this network along with a Dell that belongs to my brother. The phone my parents have is a 2.4 GHz phone and it seems to interfere with the wireless network, mostly with my Powerbook G4 12" using Apple's Airport Extreme card. Surprisingly, my mother's iBook G3 running an older Airport only capable of 802.11b seems surprisingly resilient to the phone. Unfortunately as I said, the Powerbook seems not quite as resilient to it. During a phone call yesterday, iTunes streaming from a Windows XP machine cut off numerous times and ping times on the network were horrible, albeit intermittently. I tested this by playing another song and then calling a number in close proximity to the Powerbook and the song cut out completely. Shutting the phone off yielded an instantaneous recovery and the song began playing again without a hitch. I cannot comment on the card in the Dell as my brother hardly ever uses it, but I would imagine it was the same as well. However, it would seem that the cards in Apple notebooks conflict (I'm not really sure what frequency the Airport card runs at), or the base station conflicts... hell, the whole 802.11b thing would probably conflict with the 2.4 GHz phones. If wireless network connection longevity is something you require, I'd say you should think about making sure you don't get a 2.4 GHz phone.

Uniden (1)

pluggo (98988) | more than 10 years ago | (#9910267)

I've got a dual-handset 2.4ghz Uniden cordless phone and a Netgear 802.11b Cable/DSL router... they seem to work fine together, but I haven't tested it very extensively yet.

WiFi and 2.4GHz Don't Mix (5, Informative)

pbwiz (803505) | more than 10 years ago | (#9910273)

WiFi (802.11b) and 2.4GHz Phones almost always will clash -- but there is a good article on wifi planet that gives some things that can be done to lessen interference. 191241/ []
Of course, the best solution is a 900MHz or 5.8GHz Cordless Phone.

No problems in my house (2, Interesting)

DesertJester (803191) | more than 10 years ago | (#9910277)

I have used my 2.4ghz phone while on my 54g wireless net with no issues. In fact my microwave messes-up my phone more than it does my wireless. I have two Linksys AP's running on a mostly wired net. They give me great coverage, sometimes too good... damn nieghobr with NetStumbler..oh well.

Re:No problems in my house (4, Informative)

jwcorder (776512) | more than 10 years ago | (#9910396)

Not to nig your post here, but there is no way he cracked YOUR WAP with NetStumbler unless he just left it for about 2 months.

The way NetStumbler works is that it looks for "special" packets that have weak keys. Once it gets enough of these (a million is a good number) it can crack your WEP. The only problem with this is that the average home with one or two wireless connections would have to send constant data for months and months before there would be enough packets sniffed to crack it.

A business would do it in a week probably if they had say 25-50 wireless users, but 1-3 wireless connections wouldn't be enough data to even bother sniffing out.

Not like I know ANYTHING about doing this kind of stuff though....

Wifi problems (1)

isaac338 (705434) | more than 10 years ago | (#9910281)

I have a Panasonic 2.4GHz phone which I hardly ever use anymore, because everytime the thing even so much as rings it knocks every wifi computer off the network. Sometimes you can change channels on the phone and it'll fix it until you hang up, but that's not really a good solution because you still get knocked off for the few seconds it takes you to change channels on the phone.

Definitely problematic. (1)

Kufat (563166) | more than 10 years ago | (#9910287)

My uncle had both a wifi setup and 2.4ghz phones; when the phones were used, the signal strength decreased sharply. So he gave me the phones, and then they interfered with my network, even when I changed the channel that they were operating on. (This reduced the interference but didn't eliminate it.) It looks like computers will win 2.4ghz and 5.8ghz phones will become more popular.
The microwave problem is also a common one and one which I've experienced firsthand.

Uniden 8865 (0)

Anonymous Coward | more than 10 years ago | (#9910288)

Buy a Uniden 8865 (-2). 5.8 Ghz, meaning no WiFi <--> phone interaction.

Works _great_ with Vonage (which is why you want the 8865; no answering machine, so the message indicator lights work off the Vonage voicemail waiting signal).

Works like a charm through old plaster and metal wire walls.

Re:Uniden 8865 (1)

WhatAmIDoingHere (742870) | more than 10 years ago | (#9910306)

I don't think you really understood the question. When I first installed my wireless network, the battery life of our 2.4ghz cordless phones was about 15 minutes. I went out and bought some 5.8ghz phones, and they work great with no problems. I think he's looking for phones that can co-exist with a wireless network without each other causing problems.

I get interference (1)

BrianWCarver (569070) | more than 10 years ago | (#9910293)


My D-Link 614+ wireless router has a heck of a time communicating with my wife's iBook whenever we use the 2.4GHz wireless phone.

I've read suggestions that the intereference will lessen if you set the wireless router to Channel 11, but we've tried that and only seen small to no improvement.

My plan is to buy a 5.8 GHz phone, which is widely reported [] to clear this up.

Re:I get interference (1)

joel8x (324102) | more than 10 years ago | (#9910376)

I've had the interference problem with a Linksys 802.11B router and now an Airport Express with a Seimens phone and an AT&T phone (both 2.4GHz).

When I change the routers to channel 11, I get no problem whatsover. I guess you just need to find the right combination of gear.

Re:I get interference (3, Informative)

Cyberop5 (520141) | more than 10 years ago | (#9910387)

I've tried a few 5.8ghz phones. They have horrible range and still pollute 802.11a. The quality is better, but not being able to leave the room with the base antenna doesn't really help.

Just stick to 900mhz for the best range and wireless reliability.

Adaptive 2.4ghz is probably why (2, Interesting)

rtilghman (736281) | more than 10 years ago | (#9910294)

I haven't looked into it too much, but from what I understand newer 2.4ghz phones use an adaptive frequency response to get around interference from other devices. In essence they detect other devices on "locked" channels and maneuver their way through the mine field without causing any real problems for everyone else.

As for actual signal strength, the phones aren't usually the problem. 2.4ghz phones have 2.4ghz transmitters in the base station, but the phone itself is often just 900mhz. That being the case positioning the phones base unit away from any WIFI equipment can help, the same way positioning WIFI gear away from a microwave does.

You can probably just find more about the newer adaptive 2.4ghz stuff by doing a search with google...


Link to related article (1)

rtilghman (736281) | more than 10 years ago | (#9910309)

Quick search found the following: TX .htm

Not the most impressive site or source, but we're not looking for NASA level input and I don't think anyone's going to be lying about this stuff. :)


Absolutely! (1)

md17 (68506) | more than 10 years ago | (#9910297)

A while back every time someone at my house used the cordless phone, my 802.11b network would get hosed. I ended up finding a channel which doesn't get hosed as badly, but there is still packet loss.

why 0.9Ghz is better (4, Interesting)

infonick (679715) | more than 10 years ago | (#9910303)

900Mhz phones:

1) are inexpensive;
2) do no interfere with the 5Ghz and 2.4Ghz wifi channles;
3) do no interfere with Bluetooth;
4) are inexpensive;
5) will get better range because of the lower frequency used.

Re:why 0.9Ghz is better (5, Funny)

CMRichar (610129) | more than 10 years ago | (#9910368)

i think you forgot:

6)are inexpensive.

yeah, dont... (0)

Anonymous Coward | more than 10 years ago | (#9910304)

dont buy a 2.4ghz phone... i had a $20 900mhz vtech phone that was clear as day all the way to my mailbox about 200ft down the road from my house.
unless your back yard is larger than a footbal field noone needs a 2.4ghz phone unless its a penis extension.

vice versa (1)

zontroll (714448) | more than 10 years ago | (#9910314)

My Wi-Fi was interfering with my 2.4GHz phone. This was especially bad after I upgraded from 802.11b to 802.11g for some reason. I would always hearing these clicking noises on the phone. I got one of these "Wi-Fi Friendly" phones and my problems were solved.

Then There's 900 MHz (1)

W. Justice Black (11445) | more than 10 years ago | (#9910324)

We saw the interference problem coming, even before we went wireless with the network, so we thought ahead and bought a 900 MHz DSS phone (with digital answering thingy) a couple of years ago. Thus, no issues with 802.11 or even the older Proxim Symphony stuff we used to have.

I don't know if Toshiba still sells the SX-2981, but it's a great phone... Headphone jack, good range, DSS for clarity/security, etc. Answering machine is sometimes a little unclear (unsure what audio codec they use for voice recording), but it's not too bad. All in all, it's an 8/10 phone.

my 802.11g and 2.4ghz phone hate eachother (0)

Anonymous Coward | more than 10 years ago | (#9910325)

We have a dlink 802.11g access point in my apartment along with a 2.4ghz wireless phone. Whenever I pick up the phone to make a call (or the roommate makes/answers a call) I am promptly lose my network connection.

I'm glad to see 'friendly' 2.4ghz devices are coming out!

No problems (1)

onebuttonmouse (733011) | more than 10 years ago | (#9910335)

I've got three Linksys WAP11s, two of which are positioned within 1 metre or so of the base station of my 2.4GHz phone. I've never observed any kind of interference, Airport monitor on my PowerBook says the signal to noise ratio stays the same with or without the phone, even if I make or receive a call.

900mhz phones are your WiFi friends, folks. (1)

thedarb (181754) | more than 10 years ago | (#9910337)

That's right. Stick with your 900mhz phones. Stores here in the Seattle area still carry several models in the 900mhz range. Do you really *need* the higher frequency for your phone? Save your money and buy these older phones.


Re:900mhz phones are your WiFi friends, folks. (1)

reiggin (646111) | more than 10 years ago | (#9910383)

Yes, if privacy is an issue, you do need the 2.4 or 5.8 phones. But not b/c of the freq. but b/c they have models with Digital Spread Spectrum. That's a much more reliable way to keep people from picking up your phone conversations. IIRC, 900mhz phones don't offer DSS. So when purchasing a phone, make sure it has DSS if you want security. Otherwise, it doesn't matter one way or the other. In fact, if security isn't a concern, 900mhz phones do have better range in buildings with many walls. 2.4 and 5.8 ghz signals don't travel as well through obsticles.

Re:900mhz phones are your WiFi friends, folks. (0)

Anonymous Coward | more than 10 years ago | (#9910427)

My 900mhz Sanyo CLT-926, aka The Super Phone, does have DSS. I purchased it back in 1997 and it works great with an incredible range.

Wireless Sony speakers (1)

DigiShaman (671371) | more than 10 years ago | (#9910349)

I've been told that Sony has some wireless home speakers available. And of course, they run at 2.4Ghz. From what I've been told at work, they are most often used in appartment complexes not to mention along with Wireless 802.11 b/g stuff.

I guess 2.4 is only going to get more crowded as more and more devices offer wireless ability on this spectrum. Maybe I will have a need to go back to 10/100/GB Eithernet soon :( Oh well, at least I will have a constant connection *shrug*

Digital or analogue 2.4GHZ (1)

Atticka (175794) | more than 10 years ago | (#9910351)

I had that problem with my first 2.4ghz cordless and my wifi connection, fixed it by buying a "digital" 2.4ghz set (Panasonic KX-TG2216). Earlier 2.4ghz phones used analogue technology (dont ask, I thought that being 2.4ghz meant it WAS digital...apparently not), new phone's will actually say "digital" on them or "wifi friendly".

Take a look at the KX-TG2216, very nice phone and doesnt cause issue's with my wifi.

Here's an example of unfriendly (1)

w3weasel (656289) | more than 10 years ago | (#9910352)

I have a D-link 614+ that will reset each time my Panasonic 2.4Ghz phone rings.

Changing from factory default channel 6 to channel 10 clears the problem up

My 3 year old Sony 2.4 ghz Phone Disables 802.11b (1)

Lioner (19663) | more than 10 years ago | (#9910357)

If someone picks up a handset in my house I lose 802.11b and now 802.11g signal. I think some of these phones use spread spectrum and don't obey all the freq hopping rules.

No problems here (1)

Night Goat (18437) | more than 10 years ago | (#9910361)

I've got a Linksys WRT54G router and a Panasonic 2.4GHz phone. Haven't had any problems yet, and they're both in the same room. In fact, as I type this, my laptop's directly in between the two. I think if you make sure not to use both devices on the same channel, you should be all set.

Personal Exp /w cordless 2.4GHZ joystiick (0)

Anonymous Coward | more than 10 years ago | (#9910366)

I have a 2.4ghz logi freedom/2.4

1 thing i have noticed is that our uniden (2.4?) phone will actualy kill my wireless joystick if left off hook/carrier detect(dialt0ne). Oh so many times i was all 'WTF' i crashed how? only to realize i hit the 'talk' rather then off button my phone and it was still "on". Our other phone's talk button turns it off so its a somewhat common occourence.]

Ps: everything works *fine* if the phone is actualy in a call (or so it seems).

Phones & WiFi (1)

damnal (801923) | more than 10 years ago | (#9910371)

I've got a VTech VMix [] and a LinkSys WiFi setup and they play nice together despite the lack of a "WiFi" friendly sticker. Have minor reception problems with the phone occassionally, but a simple press of the channel button fixes that and it's only when the one laptop is using the WiFi.

Short answer: yes (1)

kbielefe (606566) | more than 10 years ago | (#9910372)

I had to set my wi-fi to channel 1 in order to prevent interference with my 2.4 GHz spread spectrum phone. I thought I was just having random driver anomalies until one day I couldn't connect at all while my wife was on the phone then finally connected the instant she hung up. Watching the signal to noise ratio when I turned the phone on and off finally proved it.

What a lot of people don't realize is that both 802.11 and cordless phones are part 15 devices, meaning they have no spectrum allocated to them, they can't generate any interference to licensed users of that frequency, and have to accept any interference from other sources.

Much of the bandwidth that 802.11 uses is allocated to amateur radio, meaning that I can transmit up to 1500 Watts on those channels and legally interfere with any wi-fi stations that are in my way.

Lucky for everyone, Hams are nice guys that like computers and wireless internet too, and do everything in their power to avoid such interference even though it is their legal right.

I don't get it (1)

elnoble (652859) | more than 10 years ago | (#9910378)

Is there a common-sense reason for companies to be producing 2.4 and 5.8ghz cordless phones? I've always thought this was a 'bigger is better' marketing ploy, where people simply buy phones like they buy processors: higher frequency = better. Personally, I would think lower frequencies (say, the old 40mhz cordless phones that came out a decade ago) would do a better job propagating through walls and other objects typically found where these phones are used, as opposed to the relatively line-of-sight limitations of microwave band devices.

Never had a problem (1)

majkqball (696199) | more than 10 years ago | (#9910391)

My new Uniden 2.4GHz phones work great with WiFi. Put the phone next to the WiFi card and I get no interference. Granted, the base station is 15 feet away from the WAP, and the microwave is 30 feet away from the WAP, but I've never noticed any interference at all. The WAP is a Linksys WAP54G, BTW.

It would interfere with my Wifi (1)

NoxiousB (749211) | more than 10 years ago | (#9910397)

..... if i ever got called.

More problems .. (1)

miketang16 (585602) | more than 10 years ago | (#9910401)

I have a Uniden 2.4 GHz cordless phone from like a year or two ago. There's two problems with my D-Link DI-624 Wi-Fi router and it. One, if I use the cordless phone anyway remotely in the same area of the house as the router, I get an audible rapid clicking. Also, I discovered that by turning the phone on, and placing it next to my wireless card, it drops the signal. AND then Intel's ProWireless software says an unknown device is trying to communicate with the card. Go figure... =p

Uniden 2.4 GHz sucks rocks (0)

Anonymous Coward | more than 10 years ago | (#9910409)

I bought a 2-phone system because I liked Uniden's cordless interface and Home Depot had the system on sale. It sucks rocks. The phone and the TiBk do not work at the same time. Pick up phone, no Airport. Switching the phone channel helps about 50%. Then I have Airport and a scratchy sounding phone.

900mHZ (0)

Anonymous Coward | more than 10 years ago | (#9910411)

We have a nice, dual line, spread spectrum 900mhz phone. It works all the way down the street, is spread spectrum so no one else can pick it up, and doesn't interfere with any of our wireless stuff.

Bluetooth (1)

andrewjj20 (716117) | more than 10 years ago | (#9910415)

are there bluetooth phones availble, if there is it seems that bluetooth would be wifi friendly as it frequency hops after a packet has transfered making it interfere only for a very small while. however I have never heard of a bluetooth wireless phone, has anyone else?

Somewhat related issue with 2.4GHz phone and PC (1)

bhtooefr (649901) | more than 10 years ago | (#9910423)

I think the phone is this [] . It came with a warning that it shouldn't be near a PC. I thought it meant something like not near a WiFi base station. Well, when I used it near one, the static was REALLY bad - even when the computer had no component running anywhere near 2.4GHz (466MHz Celeron, 66MHz FSB (which means 66MHz RAM), 33MHz PCI bus).

Why do we keep going higher? (0)

Anonymous Coward | more than 10 years ago | (#9910424)

That's right. Stick with your 900mhz phones. Stores here in the Seattle area still carry several models in the 900mhz range. Do you really *need* the higher frequency for your phone? Save your money and buy these older phones. *TheDarb

No, you don't. In fact, I don't understand why phone manufacturers keep using higher, higher, and higher frequencies. I guess "overcrowding" was the initial reason; however, the higher you get in frequency, the shorter the RF wavelength, which only means your signal will not travel as far. 5 GHz??! You've got to be kidding me! Those are some crazy microwaves! I don't think I'd want anything running on 5 GHz that close to my head. I think it is time that phone manufacturers go back to using the 49 MHz band (digitally modulated, of course), now that almost all of the older (original) cordless phones that use that band are no longer in use.

Interference Robustness (2, Interesting)

mrbrown1602 (536940) | more than 10 years ago | (#9910426)

I have a PowerBook G4 which is equipped with an Airport Extreme card. The Airport Extreme (802.11b/g) has a feature called "Interference Robustness" which prevents any problems I would normally encounter using my 2.4GHz phone. Does anybody have any insight into how this works and does anybody know if any other wireless adapters include it?

900 mhz! (1)

Grimster (127581) | more than 10 years ago | (#9910428)

This is why when I recently bought new cordless phones, I bought 900mhz phones instead of 2.4 so I couldn't have any worries. I've never been at all displeased with 900mhz and the range is excellent.
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