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3CX, Phone System, SIP-T41S, SIP-T42S, SIP-T46S, SIP-T48S, SIP-T53, Yealink

Yealink Handset Crackling or Buzzing from Handset and Speakerphone

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You may occasionally notice that your Yealink phone starts crackling or buzzing.  This has most commonly been observed after the phone has been in operation for sometime without being rebooted or after a firmware update.

Below are some troubleshooting steps that you can try to resolve the buzzing and crackling

  • Try restarting the Yealink Phone (You can either remove the Power or Ethernet Cable if using PoE, alternatively just hold down the X key until you are prompted to restart the phone)
  • Try a Factory Reset on the Phone, ensure that you have all the required settings to reconfigure the device after the factory reset.
  • Update the phone firmware to the latest release and then perform a factory reset prior to configuring or provisioning the phone again.
  • Confirm if crackling or buzzing is just occurring from the handset or also from the speakerphone.  If just the handset exhibits the issue then the cable or handset may need to be replaced.
  • Ensure that the VoIP/SIP Phone System is up to date
  • Ensure that you are using the most appropriate voice Codecs for your phones and the SIP Trunk. (A-law is commonly used in Europe and u-law is generally used in the United States)
Microsoft, SBS 2011, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 1, Small Business Server 2011, Windows, Windows 7, Windows Server 2008 R2

Mrxsmb.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS 2011)

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Mrxsmb.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS 2011)

25-Sep-2014 – 6.1.7601.22819 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/3002297 – The SMB Redirector may hang when the SMB protocol is used in Windows 7 SP1 or Windows 8.1

25-Sep-2014 – 6.1.7601.22819 – Mrxsmb.sys – x86/x64 – https://support.microsoft.com/en-us/kb/3002286 – Delay in accessing a file server when a Windows 7-based computer connects to the file server

02-Oct-2013 – 6.1.7601.22470 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2895237 – FIX: Stop error 0X000000D1 in rdbss!RxTimerDispatch occurs on a server that is running Windows 7 Service Pack 1 or Windows Server 2008 R2 Service Pack 1

06-Sep-2013 – 6.1.7601.22443 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2885978 – 0x0000007F Stop error on a Windows 7 SP1-based or Windows Server 2008 R2 SP1-based computer

12-Jul-2013 – 6.1.7601.22382 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2728738 – You experience a long logon time when you try to log on to a Windows 7-based or a Windows Server 2008 R2-based client computer that uses roaming profiles

06-May-2013 – 6.1.7601.22318 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2847018 – The “Bytes Transmitted/sec” counter in Performance Monitor remains at zero when a file is copied from a computer to another computer that supports SMBv2

12-Dec-2012 – 6.1.7601.22191 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2792026 – Windows 7 SP1-based or Windows Server 2008 R2 SP1-based SMBv2 client computer freezes when the computer is under a heavy load

12-Dec-2012 – 6.1.7601.18027 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2792026 – Windows 7 SP1-based or Windows Server 2008 R2 SP1-based SMBv2 client computer freezes when the computer is under a heavy load

18-Oct-2012 – 6.1.7601.22137 – Mrxsmb.sys – x86/x64 – https://support.microsoft.com/kb/2775511 – An enterprise hotfix rollup is available for Windows 7 SP1 and Windows Server 2008 R2 SP1

09-Oct-2012 – 6.1.7601.22130 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2739674 – You cannot connect to remote computers by using the SMB protocol on a computer that is running Windows 7 or Windows Server 2008 R2

09-Oct-2012 – 6.1.7601.17970 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2739674 – You cannot connect to remote computers by using the SMB protocol on a computer that is running Windows 7 or Windows Server 2008 R2

17-Mar-2012 – 6.1.7601.21946 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2689311 – SMB commands run serially when the SMB packet-signing feature is enabled in Windows 7 SP1 or in Windows Server 2008 R2 SP1

17-Mar-2012 – 6.1.7601.17796 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2689311 – SMB commands run serially when the SMB packet-signing feature is enabled in Windows 7 SP1 or in Windows Server 2008 R2 SP1

17-Aug-2011 – 6.1.7601.21792 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2563210 – SMB connection is reset if you cancel a file operation over a network connection in Windows 7 or in Windows Server 2008 R2

15-Jul-2011 – 6.1.7601.21771 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2549724 – “0x00000044” Stop error when you access shared files in Windows Server 2008 R2 or in Windows 7

27-Apr-2011 – 6.1.7601.21714 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2536276 – MS11-043: Vulnerability in SMB Client could allow remote code execution: June 14, 2011

23-Feb-2011 – 6.1.7601.21666 – Mrxsmb.sys – x86/x64 – http://support.microsoft.com/kb/2511455 – MS11-019: Vulnerabilities in SMB Client could allow remote code execution: April 12, 2011