SoundPoint Pro conference phone hum

Occasional Visitor

SoundPoint Pro conference phone hum

I bought a two-line SoundPoint Pro nearly 13 years ago for business, and it still works for calls. However, the phone recently began making a distinctive and annoying low-level hum (sound) that only stops when the phone is unplugged. Is this normal or an indication that something is wrong?

Message 1 of 4
Occasional Visitor

Re: SoundPoint Pro conference phone hum

I have this problem as well.  Would be interested if anyone has a solution - since it's really annoying.  Love the phone in every other way.


Message 2 of 4
Occasional Visitor

Re: SoundPoint Pro conference phone hum

I know it's been a long time since you posted this, but I recently had the same problem and couldn't find any solutions online.  I did however eventually figure out the problem and fix it.


The problem is the Electrolytic Capacitor in the Power Brick has failed.


To fix it, you'll need:

<removed by a moderator> 



Hope this helps,


Message 3 of 4
Polycom Employee & Community Manager

Re: SoundPoint Pro conference phone hum

Hello all,


welcome to the Polycom Community.


This is the official Polycom community and we cannot provide documentation to end users on how to attempt to repair devices due our own liability if anything would go wrong.


I am closing this post as the only way would be an official RMA

Best Regards

Steffen Baier

Polycom Global Services


If official support is required please check how to phone or open a case here

The title Poly Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
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