[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
T28P Handset Noise Problems
Author Message
mbello Offline
Junior Member
**

Posts: 14
Joined: Jan 2015
Reputation: 0
Post: #17
RE: T28P Handset Noise Problems
Ok, I have about 15 T46g on my company and experiencing this issue once in a while.

When buzzing sound develops on a handpiece the only solution up to now was to leave it unplugged for many days and even that was hit and miss.

Now after reading your experience I got two handpieces that I knew were buzzing, plugged them to my T46g and confirmed they were still buzzing. Then I opened the first handpiece and removed the silicon/wax completely and tested the handpiece... buzzing sound was gone! I did not need to untwist the cables.

However, my question was: is it gone for good or only for a few months and will develop again like has happened over and over with these phones?

To try to answer that I took the second bad handpiece, tested again to know it was buzzing and instead of completely removing the silicon/wax, I only removed enough so that my screwdriver could make contact with the metal case of the microphone. As soon as I did that, I tested the handpiece and the buzzing had stopped.

Therefore my hypothesis is that removing the silicon/wax fixes the problem because in the process of removing it you will end up touching the mic metal case with a metallic part and it will remove whatever charge was building up on it. So in that sense it is not a permanent fix. However, it may be possible that once exposed to the air the mic will never build up such charge again. Who knows? I guess only time will tell.

At least now we are getting close to knowing how to fix our handpieces.

Tip: when opening the handpiece, after taking the screw out pull the handpiece apart by making pressure where the RJ11 port is located. It is by far the easiest way to split it open.
(This post was last modified: 08-23-2016 11:01 PM by mbello.)
08-23-2016 10:59 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
T28P Handset Noise Problems - fdtcloud - 02-20-2014, 07:18 AM
RE: T28P Handset Noise Problems - fdtcloud - 02-21-2014, 12:08 AM
RE: T28P Handset Noise Problems - braymond - 02-27-2014, 10:58 AM
RE: T28P Handset Noise Problems - braymond - 03-04-2014, 09:49 PM
RE: T28P Handset Noise Problems - fdtcloud - 03-07-2014, 06:16 AM
RE: T28P Handset Noise Problems - temp0001 - 03-09-2014, 12:01 PM
RE: T28P Handset Noise Problems - anonymous1718628087441 - 06-18-2014, 09:18 PM
RE: T28P Handset Noise Problems - braymond - 06-19-2014, 07:50 AM
RE: T28P Handset Noise Problems - anonymous1718628087441 - 06-20-2014, 06:43 PM
RE: T28P Handset Noise Problems - belcom - 01-03-2016, 10:11 AM
RE: T28P Handset Noise Problems - mbello - 08-23-2016 10:59 PM
RE: T28P Handset Noise Problems - belcom - 08-24-2016, 06:30 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T28P - OpenVPN TLS error: Unsupported protocol 1sae 0 1,987 07-18-2023 06:50 AM
Last Post: 1sae
  Weird noise when answering via speakerphone nestman 6 21,149 06-16-2021 03:05 AM
Last Post: nestman
  T28P foward call doesn´t work with 2.73.0.50 Tato 4 13,276 09-14-2020 03:49 PM
Last Post: complex1
Lightbulb Yealink T28P Firmware Upgrade Fails Michelth 11 59,409 06-27-2020 10:13 AM
Last Post: complex1
  T28P LDAP Problem oguzhan 1 8,619 06-10-2020 01:14 PM
Last Post: beldimon
  T28P Ringtones V2.70 Starlifter 22 119,761 11-29-2016 01:47 PM
Last Post: Psilverwood
  SIP-T28P Can't Answer Multiple Incoming Calls Trutelecom 1 9,039 08-31-2016 05:10 AM
Last Post: Trutelecom
  T19 makes humming noise imon32red 1 7,610 08-24-2016 06:49 AM
Last Post: mbello
  No sound on SIP-T23P handset AjN3806 1 7,619 07-18-2016 01:12 PM
Last Post: AjN3806
  T28P 2.61.0.160.rom firmware thankappas 1 8,275 04-27-2016 05:33 PM
Last Post: Karl_Yealink

Forum Jump:


User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication