Sign up
 Vonage  

       
 
Vonage Forum Menu

Vonage Forums
Vonage VoIP Forum
Whitmarsh Posted:
The 'Vonage box'
is a Grandstream
HT-701 ATA. If
you download its
Used Guide, you
...

In The Forum:
Vonage UK
Topic:
Witholding Caller ID from display and the BT 1471 service
On Oct 26, 2014 at 00:04:03

Whitmarsh Posted:
I have just
installed a V
system and it all
works fine except
for the date/time
on
...

In The Forum:
Vonage UK
Topic:
Vonage messes up date/time on Panasonic DECT phone
On Oct 22, 2014 at 09:41:43

TUBSUB Posted:
Vonage router does
not recognize a HP
2270DW printer.
Current setup is:
Comcast-modem
...

In The Forum:
Vonage
Topic:
HP Printer setup issue
On Oct 05, 2014 at 15:28:26

eltonlight Posted:
Is this supported
by Iphone6? I am
just curious.
...

In The Forum:
Vonage
Topic:
Use with iPhone, and switch to data-only plan?
On Sep 24, 2014 at 05:06:04

Jesse641 Posted:
Hi, I have Skype
installed on PC,
but I use it
mainly to talk for
free. Otherwise
...

In The Forum:
Vonage
Topic:
Click to call iPhone App
On Sep 06, 2014 at 13:27:05

UncleDuck Posted:
The quality of
voicemail has
deteriorated to
the point that it
requires listening
...

In The Forum:
Vonage
Topic:
Voicemail Quality and Playback Issues
On Aug 19, 2014 at 17:20:01

Snack Posted:
On a wired
connection, just
connect the Vonage
to the ethernet
port of the hotel
...

In The Forum:
Vonage
Topic:
Using Vonage in a hotel
On Aug 06, 2014 at 19:22:31

Bill18164 Posted:
...
In The Forum:
Vonage
Topic:
Voicemail Problem
On Jul 24, 2014 at 22:15:20

justwarner Posted:
...
In The Forum:
Vonage
Topic:
IP PBX for small business
On Jul 24, 2014 at 07:44:54

adamnmurad Posted:
I talk very, very
infrequently on
the phone. I'm
thinking of
switching to a
data-only
...

In The Forum:
Vonage
Topic:
Use with iPhone, and switch to data-only plan?
On Jul 21, 2014 at 14:29:35


Vonage VoIP Forums

Vonage In The News
Vonage Holdings Corp. Reports Fourth Quarter and Full Year 2013 Results

Carolyn Katz Elected to Board of Directors of Vonage Holdings Corp.

Syndication

Vonage Customer Reviews
Vonage vs. Time Warner Cable SoCal
Vonage vs. Time Warner Cable SoCal



Vonage UK Review
Vonage UK Review



Vonage Pros and Cons for 2006
Vonage Pros and Cons for 2006



Vonage, a VT2142 and a RTP300, My Experiences - A Detailed Review
Vonage, a VT2142 and a RTP300, My Experiences - A Detailed Review



Salt Lake City: impressions after several months
Salt Lake City: impressions after several months




Vonage Reviews


Post new topic   Reply to topic  Vonage® VoIP Forum - Vonage News, Reviews And Discussion » Vonage Forum Archive
Author Message
djcman
Full Forum Member
Full Forum Member


Joined: Feb 17, 2005
Posts: 47
Location: Detroit Rock City

PostPosted: Wed Mar 23, 2005 10:25 pm    Post subject: Microwave and Vonage Reply with quote Back to top

Hello,

We have a cordless phone system that we use with our PAP2 Vonage adaptor. When we had the cordless phone system connected into wall jacks using SBC no problem with interference from Microwave. Now if we stand by our Microwave while talking on the phone we get terrible interference and can't continue with the call!? Not a big deal, however find it kind of weird! Just curious if anyone else has had this happen?

Thanks
View user's profile Send private message
almahix
Vonage Forum Master
Vonage Forum Master


Joined: Jun 01, 2004
Posts: 183
Location: Central California Coast

PostPosted: Wed Mar 23, 2005 10:58 pm    Post subject: Reply with quote Back to top

I'm guessing here, but it sounds like you might be using a 2.4 GHz wired base station and wireless expansion handsets. If you have your wired base plugged into your TA elsewhere in the house and use a wireless handset near the microwave you will be subject to interference from the microwave since it too works in the 2.4 GHz frequency. It is causing RF noise along with your signal to the base station. The ideal solution is to upgrade to a 5.8 GHz phone system, or not use the telephone while standing near near the microwave when it is on.

Hope this helps. My conversion to an AT&T 5800 phone system fixed the problem for me right away, less of course about $200 in my bank!

_________________
Alma Hix
Vonage subscriber March 2004 - November 2006
and August 2008 - (tbd)
View user's profile Send private message Visit poster's website
djcman
Full Forum Member
Full Forum Member


Joined: Feb 17, 2005
Posts: 47
Location: Detroit Rock City

PostPosted: Thu Mar 24, 2005 7:19 am    Post subject: Thanks! Reply with quote Back to top

Thank you for taking the time to post an explanation!
View user's profile Send private message
peterwemm
Full Forum Member
Full Forum Member


Joined: Apr 15, 2004
Posts: 42
Location: Danville, CA, US

PostPosted: Sun Mar 27, 2005 1:14 am    Post subject: Reply with quote Back to top

Your microwave probably lists the nominal frequency that it uses. Ours operate at 2450MHz, right smack in the middle of the 2.4GHz ISM (Industrial/Scientific/Medical) range. The microwave is pumping a few hundred watts of energy in electromagnetic wave form into your food. In theory the shielding keeps it inside, but some always leaks.

Suppose there is 500W of energy inside the cabinet, and a 0.1% leakage rate. That is 0.5 watts of 2.4GHz noise leaking into your house. (500 milliwatts). This is just an example, I dont know for sure what typical levels are, but I can guess.

Wifi and cordless phones run their transmitters in the milliwatt range. 802.11b devices transmit typically in the 30-50 milliwatt range, and max out at 200 milliwatts.

Anyway, for some strange reason, the blast of 2.4GHz noise leaking from the microwave totally swamps other uses of the 2.4GHz ISM band.

"Blast" is probably the wrong word. The signal levels we are talking about are really really small. The microwave oven leakage is tiny, but wifi and cordless phones run on much smaller levels still. After all, nobody wants to put any more microwave energy into people's skulls than absolutely possible these days for fear of lawsuits.

The good news is that microwave ovens tend to not use the entire ISM band. Most of the energy is right in the middle and the noise levels drop dramatically as you move away from the center frequency. So while you are up really close, even the smaller off-center frequencies can disturb your phone or wireless, but once you get away from it a bit, the phones can usually change channels to avoid the worst of the interference.

How the phone system copes, depends on its design and radio system. Some phones use spread spectrum style signalling, others use narrow frequency slots and change channels as needed (frequency hopping). The design of the radio electronics is significant too. If the tuner is not very selective, the tuner can let in lots of the nearby frequency noise from the microwave and swamp the radio, causing it to turn down the amplification gain. Imagine that two people are shouting next to your ear, loud enough to hurt. You put your hands over your ears. And now for some reason you can't hear the other voice you're trying to listen to.

Switching to 5.8GHz avoids this problem, for a while. It too is an unlicensed spectrum, and it will become crowded over time, especially with all the 2.4GHz refugees heading over there.

The other problem with 5.8GHz is that it penetrates walls etc much more poorly than 2.4GHz. Thus signal problems are likely to be much more of an issue. However, there are several other factors too.. Firstly, the poor signal penetration of 5.8GHz means you're less likely to pick up stray background 5.8GHz noise from your neighbors phones or the 802.11a system etc. This works in your favour. Secondly, the radios and air interface designs are generally quite superior to older 2.4GHz and 900MHz designs. The chances are fairly good that your 5.8GHz phones can work much more satisfactorily on a poor signal strength.

Also, newer cordless phone designs came after the 802.11 boom, so they've learned that they need to listen specifically for 802.11 beacons and packets, not for continuous low level background noise like they'd expect from a microwave oven. That's what they mean by "802.11 friendly".

Anyway, that's probably more than you ever wanted to know. Smile

BTW: was the cordless phone base station physically in the same location when it was plugged into the SBC jack as it is now? If you moved the base station for some reason, I'm guessing there is a different proximity to the microwave oven somehow. For example, if the base station used to be in the kitchen at the SBC phone jack, and now it is elsewhere else in the house, near a broadband connection, all of a sudden the signal levels between the kitchen and base station are much lower than before and the microwave will drown it out much more easily.

_________________
Vonage customer since March 2004. Customer of just about every other Voip provider out there too.
Asterisk PBX software, using Vonage softphone. ATA VT1005, rarely used.
ISP: Comcast (8M down, 768K up) *and* Sonic.net ADSL (1.5M down, 384K up) for Voip
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


All times are GMT - 5 Hours

Vonage Service Plans


Vonage VoIP Members
Members List Members
New RDillard
New Today 17
Yesterday 19
Total 84399

Who Is On Site
Visitors 164
Members 4
Total 168


Vonage VoIP Forum Members:
Login Here
Not a Member? You can Register Here
As a registered member you will have access to the VoIP Speed Test, Vonage Service Announcements and post comments in the
Vonage VoIP Forums

Vonage Stock Price
Value: 3.40
Change:   0.00
Up to 15 Minute Delay

Site Search
 






†AK and HI residents pay $29.95 shipping. ††Limited time offer. Valid for residents of the United States (&DC), 18 years or older, who open new accounts. Offer good while supplies last and only on new account activations. One kit per account/household. Offer cannot be combined with any other discounts, promotions or plans and is not applicable to past purchases. Good while supplies last. Allow up to 2 weeks for shipping. Other restrictions may apply.

1Unlimited calling and other services for all residential plans are based on normal residential, personal, non-commercial use. A combination of factors is used to determine abnormal use, including but not limited to: the number of unique numbers called, calls forwarded, minutes used and other factors. Subject to our Reasonable Use Policy and Terms of Service.

2Shipping and activation fees waived with 1-year agreement. An Early Termination Fee (with periodic pro-rated reductions) applies if service is terminated before the end of the first 12 months. Additional restrictions may apply. See Terms of Service for details.

HIGH SPEED INTERNET REQUIRED. †VALID FOR NEW LINES ONLY. RATES EXCLUDE INTERNET SERVICE, SURCHARGES, FEES AND TAXES. DEVICE MAY BE REFURBISHED. If you subscribe to plans with monthly minutes allotments, all call minutes placed from both from your home and registered ExtensionsTM phones will count toward your monthly minutes allotment. ExtensionsTM calls made from mobiles use airtime and may incur surcharges, depending on your mobile plan. Alarms, TTY and other systems may not be compatible. Vonage 911 service operates differently than traditional 911. See www.vonage.com/911 for details.

** Certain call types excluded.

www.vonage-forum.com is not an official Vonage support website & is independently operated.
All logos and trademarks are property of their respective owners. All comments are property of their posters.
All other www.vonage-forum.com content is © Copyright 2002 - 2013 by 4Sight Media LLC.

Thinking of signing up for Vonage but have questions?
Business and Residential customers can call Toll Free 24 hours a day at: 1-888-692-8074
No Vonage Promotion Code or Coupon Codes are required at www.vonage.com to receive any special,
best Vonage cheap deals, free sign up offers or discounts.

[ | | | | | ]

Vonage Forum Site Maps

Vonage | VoIP Forum | How VoIP Works | Wiring and Installation Page Two | International Rate Plans 2 | Internet Phone
Promotion | Vonage Review | VoIP | Broadband Phone | Free Month | Rebate | Vonnage | Vontage | VoIP | Phone Service
Phone | llamadas ilimitadas a Mexico | Latest News | VoIP Acronyms | Deal | Philippines Globe Phone | Site Maps

The Vonage Forum provides the Vonage sign up Best Offer Promotion Deal.
If you are considering signing up for Vonage and have found our Vonage News, Customer Reviews, Forums
& all other parts of this site useful, please use our Vonage Sign up page.


Vonage VoIP Phone Service is redefining communications by offering consumers
& small business VoIP Internet phones, an affordable alternative to traditional phone service.
The Vonage VoIP Forum Generated This Page In: 0.85 Seconds and 440 Pages In The Last 60 Seconds
The Vonage VoIP Forum