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S20 Extension BLF Lamps Randomly Stop Working

Mike Hein

January 28, 2019 23:10

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BLF Lamps on Yealink T48S Phone with S20 randomly stop working.

Sometimes the Lamps do not update the status and show active extension and sometimes the Lamps stop working altogether. If the Phone is rebooted then the Lamps work OK for about a week or two before it happens again.

We engaged Yealink support but they said it was a PBX issue.

We then replaced the Yealink Phone with a Fanvil X6 Phone but the problem remains so it must be an S20 issue.

Over the Christmas break we reset the PBX to Factory Defaults and reprogrammed it and re-provisioned the Phones from scratch without restoring the backups.

This did not solve the problem and we have to reboot the extension every 1 to 2 weeks when the Lamps stop working/indicating status.

 

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7 comments

• 1
  
  Roland January 30, 2019 15:38

  I have the same problem by some of my customers. Over the christmas break I updated all S20 to 30.9.0.20. Since then the problem occurs.

  I have scheduled a reboot every week and often after this reboot I have this problem.

  After rebooring the phones, the problem is solved.

   

   
• 1
  
  Riddhe M January 31, 2019 06:15

  I don't see this problem on my S100 with latest version 30.10.0.34.

  You might try to upgrade it. If issue persists, it's better to submit a ticket to get support from Yeastar. 

• 1
  
  Alexandre Tremblay February 07, 2019 17:24

  Same issus with S-20 and 30.10.0.34...

• 0
  
  Mike Hein February 07, 2019 20:16

  This issue has been going on for about a year - each time there is a new update from Yeastar we get excited and install the Firmware Update but the issue still remains with current Firmware (30.10.0.34).

  We can't "reproduce" the issue and, when it randomly happens, we always seem to miss the opportunity to do a Pcapture before the user decides to reboot the Phone. When we eventually get the opportunity to do a capture we'll open a case with Yeastar.

• 0
  
  Alexandre Tremblay February 07, 2019 20:25

  I updated from Version 30.5.0.30 last week and before that, I never see this issue for that customer... It's a new issus after the upgrade.

• 0
  
  Samuel Jacques August 02, 2019 13:36

  I have the same problem with the firmware 30.10.0.75 on S20.

• 0
  
  Vault October 15, 2019 13:42

  Our Yealink phones (2x T46S and 18x T41P) connected to our S50 (30.11.0.8) is randomly not showing the BLF status anymore. Nothing changed except for the S50 that was recently updated from 30.10.0.75. Rebooting the phones temporarily resolves the problem.

  I can still remember that we had this exact same fault many firmware versions back, but is was resolved with an update.