I have a Panasonic DECT 6.0-Series 3-Handset Cordless Phone System with Answering System (Model KX-TG1033S) which includes 1 base unit, 3 handsets and 2 chargers. All of the handsets have NEW Panasonic NiMH 700mah AAA Rechargeable Batteries.
When the phone rings, a buzzing sound emanates from the handsets. (The caller does not hear the buzzing sound).
I have similar stuff. Mine does not do this. It is something in your house. Notably cheap LED lights or fixtures. Try turning off circuits to track down the problem. If you have a fully charged battery in the base (at least in mine) you can turn the whole house off and still use the system. Then call in from a cell or neighbor to see if it's there. Get back to us.
Panasonic DECT is generally 5.8ghz and does not interfere with or get interference from wifi or bluetooth. I gave 3 Panasonic DECT phones and have never had any problem with noise (except for BAD line noise). A previous set I had got noisy so I threw it away and got the DECT set. On mine it appeared to be a base station problem as it affected all phones connected to it.
First thing I would do is connect as standard wired phone to the system and see if it is noisy too - we did have a cabling problem with Bell so I switched to OOMA and now I don't have the line noise issue.
But if I understand it correctly, this buzzing is from the handset only when it's ringing. Hard to see how that is from interference. Sounds more like something wrong with the phone system. IDK where they generate the ring sound, in the base and send it to the handset or in the handsets? If it's the former, then could be something's gone wrong in the base. First thing I'd do is completely remove power from the base and all the handsets, let them fully reset.
I've unplugged the DSL line-filter from the telephone jack but the buzzing noise still occurs when phone messages are left on or retrieved from the answering system.
Disconnect the phone line and "answer" the phone. Do you still hear it?
If so, plug it in as far from where it is now as possible. Even if there is no phone line, you can stilll "answer" the phone. Does it still hum. If so there was something near the first location. If it hummed in the previous step and it no longer hums here, it's not the phone.
Is it a 60 or 120 cycle per second hum? You can probably find those frequencies on a piano and see how the hum compares. A-440 is iirc the A below middle C in the center of the keyboard, which makes the A below that 220 and the A below that 110. And below that 55. Are either 110 or 55 close in frequency.
The hum may be coming from a nearby fluorescent light or compact fluorescent or an LED light bulb, Or even a motor or other electronic device.
O3r it might be inherent in the new phone but that's unlikely.
I have a Panasonic cordless sitting here on my desk. It causes hum in my PC speakers if the base unit is too close to the PC speaker that contains the amplifier. Also, if I turn the base unit 90 degrees, the hum goes away. Is there anything electronic near the base? Try moving it.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.