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Wifi interference?? does the uniden cordless phone model 3315 interfere with wifi broadband?

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James Ely

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The short answer is that it could interfere with the wi-fi, but your wi-fi should not interfere with your phone because it uses WDECT, "wide-band digitally enhanced cordless telecommunications" engineering. No matter how tight the bandwidth is on any RF transmission, power, proximity, and harmonics all play a roll. Ideally we want the power from our transmission to occupy the target frequency but the reality in RF is that this is nearly impossible without DSP filters. I have pasted some extra info below to help answer this question.

Digital Enhanced Cordless Telecommunications
(DECT), known as Digital European Cordless Telephone[1] until 1995, is an ETSI standard for digital portable phones (cordless home telephones), commonly used for domestic or corporate purposes. It is recognised by the ITU as fulfilling the IMT-2000 requirements and thus qualifies as a 3G system.


The four most common frequencies today are 900MHz, 2.4GHz, 5.8GHz and DECT 6.0:

900 MHz Currentlythe most common frequency for cordless phones, 900MHz phones may offera greater range than other frequencies. However, the 900MHz spectrum iscluttered and may result in interference with baby monitors and other900MHz cordless phones. Radio scanners can also easily pick up thisband. 2.4 GHz 2.4GHzphones offer better clarity and security than 900MHz, but mayexperience some interference with microwave ovens and wirelessnetworking (wi-fi) products. 5.8 GHz Themost advanced cordless phones available, 5.8GHz phones transmit on anew, open frequency and have the least chance for interference. Theywill not interfere with wireless networking (wi-fi) products. DECT 6.0 DECT6.0 operates on the 1.9GHz frequency. Though newly approved in the US,this frequency has been used for many years in Europe and can increasecall clarity and security. The wi-fi friendly DECT technology easilyintegrates into homes with wi-fi and internet services because the1.9GHz frequency is exclusive to DECT, making it interference free forcordless communications.

Posted on Jul 19, 2009

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1 Answer

We have a Uniden N32 Model XDECT7055. How do I remove the red flashing light on top of all the phones.


If that is the Voice Mail Waiting indicator light at the top of the handset and on the base, you need to press Menu on the base. Use the up/down arrows to select VMWI Reset. Press Menu again to select this sub-menu. Use the arrows to highlight Yes and press Menu again. You may need to contact your telephone company to make sure that the voice mail service is still compatible with the Frequency-Shift Keying message notification. Some broadband (particularly DSL) systems can cause telephone interference. Check with the broadband provider if you need a DSL filter (or similar item) to keep the interference from corrupting the VMWI information.

The procedure is on page 17 (19 of the PDF) of the manual for the Uniden XDECT7055. This is available here: https://www.uniden.com.au/resources_main/pdfs/XDECT_7055_3WP_OM.pdf .

I hope this helps.

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1 Answer

Only get static when answering machine comes on to record


Check for interference from appliances (microwave ovens, TVs, etc.) or wireless devices (baby monitors, WiFi equipment, etc.). Move the handset or base away from the interference source.

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1 Answer

Can the phone line be dead and the internet still work


Simply put no, but you can pick up wifi from other sources to get free broadband, if you are close to certain areas there are free wifi hotspots. Libraries, Macdonalds etc.

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1 Answer

For some time I used Uniden cordless phones. I connect through Vonage. However, with each phone I have had a problem with dropped calls. I got a new Vonage router, but that did no good. Is there a way to...


it can be a broadband problem, it might be the filter on your line that is causing the problem, a hum or strange sounds on the line usell cause a drop in calls but sometimes if the filter has fault it will interfere with calls in other ways.

Dec 21, 2017 | Uniden Cordless Phone

1 Answer

We are unable to hear caller but they can hear us just fine.


Hi Jess, apparently it is because the cordless phone is transmitting on the same frequency as WIFI network (wireless broadband). I am having the same problem as you and thats what I have found out. Looks like we need to buy a DECT (Digital Enhanced Cordless Technology) phone. Problem solved, so they say. Paul

Apr 30, 2010 | Uniden Cordless Phone

1 Answer

My phone cuts off laptop wireless


Wifi typically operates in the 2.412Ghz - 2.472 Ghz depending on the channel selected. ideally the Wifi modem/router and the DECT phone should be operating in completely different bandwidths.

If your DECT phone is cutting off your Wifi wireless connection, then they must me operating in similar/same range: you need to change either your Wifi or DECT frequency 'channel' to minimize this interference.
Also make sure that there is a least 3 meters between the DECT base station and your Wifi modem/router to eliminate Transceivers static RF/EMF interference.

Hope it helps: let me know how you go.

Jan 12, 2010 | Uniden Cordless Phone

2 Answers

My phones don't work they all say


Unusual problem on a new phone. Could possibly be radio frequency interference close by.

Some cordless phones operate on the same frequencies as in-home wireless networks. I believe this is the 2.8 megahertz frequency. The phones and the wireless networks can interfere with each other.

Most newer cordless phones are higher frequency (5.8 megahertz?). Wireless networks shouldn't interfere with those phones, but there could be other things that could (e.g., transformers on power poles).

If the phones are new, you might consider taking them back and getting another model.

Oct 10, 2009 | Uniden Cordless Phone

1 Answer

Uniden 3315 Frequency Problem


Your phone has Digital Enhanced Cordless Telecommunications (DECT), known as Digital European Cordless Telephone[1] until 1995, The digital filters will prevent interference from the bandwidths used by phones and wi-fi.
Your phone also incorporates dynamic channel allocation which switches frequencies when noise(static) is encountered.
Eventually your conversations take a wire route down the road. You are getting some "cross talk", an actual scientific term used to describe signal transmission from one line parallel to another by magnetic eddy currents. I would call the phone company and have them trace the problem.

May 13, 2009 | Uniden Lands Phones

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