AT&T Wireless Router Interferes with Cordless Phone

We have the newest AT&T 2wire wireless router. The problem is that my
vtech 5.8 ghz cordless phone has so much static that I use my cell
phone instead. We have filters on every single phone jack, but we
still have an inordinate amount of interference. Does anyone have any
suggestions as to how to fix this problem?

"LauraM" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> We have the newest AT&T 2wire wireless router. The problem is that my
> vtech 5.8 ghz cordless phone has so much static that I use my cell
> phone instead. We have filters on every single phone jack, but we
> still have an inordinate amount of interference. Does anyone have any
> suggestions as to how to fix this problem?

1) either place your cordless phone as far away from your wireless router,
to reduce the interference they are causing each other.

2)If that is not possible, get a cordless phone that operates on a different
frequency.
>

"LauraM" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> We have the newest AT&T 2wire wireless router. The problem is that my
> vtech 5.8 ghz cordless phone has so much static that I use my cell
> phone instead. We have filters on every single phone jack, but we
> still have an inordinate amount of interference. Does anyone have any
> suggestions as to how to fix this problem?
>
I thought that wireless operated on the 2.4 band, so should not afftect that
phone.

Phone jack filters will not help if the static is in 'the air'. Have you
tried all availablke channels?


I had so much trouble with my 2.4 phones, with interference from wireless
lan and other sources, that I bought a panasonic 5.8 phone that specifically
stated 'wireless network friendly'. We are really peased with it here.

Stuart

LauraM <(E-Mail Removed)> hath wroth:

>We have the newest AT&T 2wire wireless router.

Does it have a model number or do I have to guess whether it has
5.7GHz 802.11a inside?

>The problem is that my
>vtech 5.8 ghz cordless phone has so much static that I use my cell
>phone instead. We have filters on every single phone jack, but we
>still have an inordinate amount of interference. Does anyone have any
>suggestions as to how to fix this problem?

Nope. No suggestions until you disclose some model numbers. That
includes the Vtech phone. Some of their cordless phone models
transmit on 5.8Ghz, but receive on 2.4GHz. If the 2Wire wireless
router is 2.4GHz, you'll hear interference.

The DSL line filters have nothing to do with an RF problem. They're
to isolate the DSL carrier on the phone line from the telephone audio.
However, the symptoms are very similar to an improperly installed DSL
filter. Without filters, you'll have erratic dropouts of the DSL
carrier (as indicated by the lights on the front of your unspecified
2Wire model router), especially when the phone rings. You'll also
have lousy download speeds as indicated by the SBC/AT&T DSL speed
test.
<http://helpme.att.net/dsl/speedtest/>
You'll also hear a continuous hiss, but not very loud. You can talk
over it. If what you're hearing is an intermittent loud hiss,
something like a motorboat running, then you're hearing the wireless
transmitter from the 2Wire router. If it's a continuous low level
hiss, it's the DSL carrier, in which case you should check your filter
installation.



--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Aug 23, 5:00 pm, Jeff Liebermann <je...@cruzio.com> wrote:
> LauraM <fingerso...@yahoo.com> hath wroth:
>
> >We have the newest AT&T 2wire wireless router.
>
> Does it have a model number or do I have to guess whether it has
> 5.7GHz 802.11a inside?
>
> >The problem is that my
> >vtech 5.8 ghz cordless phone has so much static that I use my cell
> >phone instead. We have filters on every single phone jack, but we
> >still have an inordinate amount of interference. Does anyone have any
> >suggestions as to how to fix this problem?
>
> Nope. No suggestions until you disclose some model numbers. That
> includes the Vtech phone. Some of their cordless phone models
> transmit on 5.8Ghz, but receive on 2.4GHz. If the 2Wire wireless
> router is 2.4GHz, you'll hear interference.
>
> The DSL line filters have nothing to do with an RF problem. They're
> to isolate the DSL carrier on the phone line from the telephone audio.
> However, the symptoms are very similar to an improperly installed DSL
> filter. Without filters, you'll have erratic dropouts of the DSL
> carrier (as indicated by the lights on the front of your unspecified
> 2Wire model router), especially when the phone rings. You'll also
> have lousy download speeds as indicated by the SBC/AT&T DSL speed
> test.
> <http://helpme.att.net/dsl/speedtest/>
> You'll also hear a continuous hiss, but not very loud. You can talk
> over it. If what you're hearing is an intermittent loud hiss,
> something like a motorboat running, then you're hearing the wireless
> transmitter from the 2Wire router. If it's a continuous low level
> hiss, it's the DSL carrier, in which case you should check your filter
> installation.
>
> --
> Jeff Liebermann je...@cruzio.com
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060http://802.11junk.com
> Skype: JeffLiebermann AE6KS 831-336-2558

Thanks Jeff. I appreciate your thorough answer.

On Aug 23, 5:00 pm, Jeff Liebermann <je...@cruzio.com> wrote:
> LauraM <fingerso...@yahoo.com> hath wroth:
>
> >We have the newest AT&T 2wire wireless router.
>
> Does it have a model number or do I have to guess whether it has
> 5.7GHz 802.11a inside?
>
> >The problem is that my
> >vtech 5.8 ghz cordless phone has so much static that I use my cell
> >phone instead. We have filters on every single phone jack, but we
> >still have an inordinate amount of interference. Does anyone have any
> >suggestions as to how to fix this problem?
>
> Nope. No suggestions until you disclose some model numbers. That
> includes the Vtech phone. Some of their cordless phone models
> transmit on 5.8Ghz, but receive on 2.4GHz. If the 2Wire wireless
> router is 2.4GHz, you'll hear interference.
>
> The DSL line filters have nothing to do with an RF problem. They're
> to isolate the DSL carrier on the phone line from the telephone audio.
> However, the symptoms are very similar to an improperly installed DSL
> filter. Without filters, you'll have erratic dropouts of the DSL
> carrier (as indicated by the lights on the front of your unspecified
> 2Wire model router), especially when the phone rings. You'll also
> have lousy download speeds as indicated by the SBC/AT&T DSL speed
> test.
> <http://helpme.att.net/dsl/speedtest/>
> You'll also hear a continuous hiss, but not very loud. You can talk
> over it. If what you're hearing is an intermittent loud hiss,
> something like a motorboat running, then you're hearing the wireless
> transmitter from the 2Wire router. If it's a continuous low level
> hiss, it's the DSL carrier, in which case you should check your filter
> installation.
>
> --
> Jeff Liebermann je...@cruzio.com
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060http://802.11junk.com
> Skype: JeffLiebermann AE6KS 831-336-2558

Model # is MI6896. I posted the previous message accidentally before
I had added in the model #. Sorry!

"Stuart Miller" <(E-Mail Removed)> hath wroth:
>"LauraM" <(E-Mail Removed)> wrote in message
>news:(E-Mail Removed) roups.com...
>> We have the newest AT&T 2wire wireless router. The problem is that my
>> vtech 5.8 ghz cordless phone has so much static that I use my cell
>> phone instead. We have filters on every single phone jack, but we
>> still have an inordinate amount of interference. Does anyone have any
>> suggestions as to how to fix this problem?

>I thought that wireless operated on the 2.4 band, so should not afftect that
>phone.

Wireless also operates on 900MHz(1) and 5.8GHz(802.11a).
In this case, I wasn't sure if 2Wire made a wireless router that
included 802.11a. So, I looked it up:
<http://www.2wire.com/index.php?p=106>
Nope. I'm not 100.0% sure, but it appears to be all 802.11g "HyperG"
which is 2.4GHz only. Nothing on 5.8GHz.

There is a possiblity that the Vtech phone is one of those that xmits
on 5.8GHz, but receives on 2.4GHz. I'll wait for a model number
rather than speculate.

Otherwise, it's a bad DSL microfilter installation where the
"interference" is the audio hiss generated by the DSL carrier. I keep
finding users that install them backwards (with sometimes works), or
gets the "phone" and "data" ports backwards.

>Phone jack filters will not help if the static is in 'the air'. Have you
>tried all availablke channels?
>
>I had so much trouble with my 2.4 phones, with interference from wireless
>lan and other sources, that I bought a panasonic 5.8 phone that specifically
>stated 'wireless network friendly'. We are really peased with it here.

Yep. I was looking at the lastest mess of wireless "all in one"
printers with printing, fax, scanner, ethernet, and wireless. I was
just waiting for someone to throw in a cordless phone. They did and
as expected, it's a 5.8GHz phone.

(1) 900MHz 802.11g http://www.ubnt.com/products_sr9.php4

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

LauraM <(E-Mail Removed)> hath wroth:

>Model # is MI6896. I posted the previous message accidentally before
>I had added in the model #. Sorry!

Is that the 2Wire router or the Vtech cordless phone? I don't
recognize the number. See:
<http://www.2wire.com/index.php?p=106>
for a list of 2Wire numbers. However, it doesn't really matter. All
2Wire routers are 2.4GHz, not 5.8GHz.

Bingo. I downloaded the manual for the Vtech 6896.
<http://www.vtechphones.com/docMgt/public/art/22108/mi6866_and_70_and_96_manual.pdf>
The specs are on Page 59 which show:
Transmit Frequency Telephone base: 5725-5850 MHz
Handset: 2400-2483.5 MHz
Receive Frequency Telephone base: 2400-2483.5 MHz
Handset: 5725-5850 MHz

That means your telephone base is going to hear RF interference from
the 2Wire router at 2.4GHz. However, all is not lost. Just more the
phone base (not the handsets) as far away from the 2Wire router as
possible and see if it helps. You can operate the handsets near the
router without difficulties.

There's one potential problem. My guess is that your unspecified
model 2Wire router is the 400mw high power version that SBC has been
shipping. This is quite a good router, but generates 10 times as much
RF power as the typical commodity router. Great for range, but not so
great for interference.

If moving the Vtech base doesn't help, then methinks the cheapest and
best solution would be to sell the Vtech cordless phone system to your
worst enemy and buy one that uses only 5.8Ghz (and not both 2.4 and
5.8).

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Jeff Liebermann <(E-Mail Removed)> hath wroth:

>Bingo. I downloaded the manual for the Vtech 6896.
><http://www.vtechphones.com/docMgt/public/art/22108/mi6866_and_70_and_96_manual.pdf>
>The specs are on Page 59 which show:
> Transmit Frequency Telephone base: 5725-5850 MHz
> Handset: 2400-2483.5 MHz
> Receive Frequency Telephone base: 2400-2483.5 MHz
> Handset: 5725-5850 MHz

I forgot the punch line. I found this on the same page:

"Enhanced 5.8GHz technology: Your phone operates on
a dual band transmission that combines the best of 5.8GHz
and 2.4GHz technologies, providing enhanced performance
over standard cordless telephones."

Translation: Vtech saved a few pennies on a proper 5.8GHz duplexer by
using a cheaper dual band chipset. With one of these phones, you can
trash both the 802.11b/g and 802.11a bands.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Aug 23, 5:26 pm, Jeff Liebermann <je...@cruzio.com> wrote:
> LauraM <fingerso...@yahoo.com> hath wroth:
>
> >Model # is MI6896. I posted the previous message accidentally before
> >I had added in the model #. Sorry!
>
> Is that the 2Wire router or the Vtech cordless phone? I don't
> recognize the number. See:
> <http://www.2wire.com/index.php?p=106>
> for a list of 2Wire numbers. However, it doesn't really matter. All
> 2Wire routers are 2.4GHz, not 5.8GHz.
>
> Bingo. I downloaded the manual for the Vtech 6896.
> <http://www.vtechphones.com/docMgt/public/art/22108/mi6866_and_70_and_...>
> The specs are on Page 59 which show:
> Transmit Frequency Telephone base: 5725-5850 MHz
> Handset: 2400-2483.5 MHz
> Receive Frequency Telephone base: 2400-2483.5 MHz
> Handset: 5725-5850 MHz
>
> That means your telephone base is going to hear RF interference from
> the 2Wire router at 2.4GHz. However, all is not lost. Just more the
> phone base (not the handsets) as far away from the 2Wire router as
> possible and see if it helps. You can operate the handsets near the
> router without difficulties.
>
> There's one potential problem. My guess is that your unspecified
> model 2Wire router is the 400mw high power version that SBC has been
> shipping. This is quite a good router, but generates 10 times as much
> RF power as the typical commodity router. Great for range, but not so
> great for interference.
>
> If moving the Vtech base doesn't help, then methinks the cheapest and
> best solution would be to sell the Vtech cordless phone system to your
> worst enemy and buy one that uses only 5.8Ghz (and not both 2.4 and
> 5.8).
>
> --
> Jeff Liebermann je...@cruzio.com
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060http://802.11junk.com
> Skype: JeffLiebermann AE6KS 831-336-2558

Ah ha! Thanks for all your help. I'll try moving the evil doer and
if that doesn't work....wanna buy a phone??? <just kidding> Thanks!