[FAQ] Since upgrading to UCS 5.1.1 BToE is no longer active or working

Polycom Employee & Community Manager

[FAQ] Since upgrading to UCS 5.1.1 BToE is no longer active or working

UCS 5.1.1 introduced new features and functionality and as part of this BToE is no longer active when the phone is in LYNC base profile mode.




In order to activateor deactivate BToe manually on the phone please follow these steps:


  • Press Menu Key

  • Select Settings

  • Select Feature

  • Select BToe

  • Enable or Disable BToE

Option 2:


Simply provision the feature from the provisioning server or import via the Web Interface if active (check => here <=).


<btoe feature.btoe.enabled="1" />


BToE 3.0.0 or later:



BToE 3.0.0 in addition added more security and new ports. Please ensure that the PC firewall allows these ports




  • UDP 2081 Phone => PC
  • TCP 24801 Phone <=> PC
  • SSH 22 Phone <=> PC
  • UDP 24802 Phone <=> PC
  • PCB.Exe and PLINK.exe TCP Port 6000

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.


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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.
Please also ensure you always check the VoIP , Video Endpoint , Microsoft Voice , PSTN or other FAQ's in the different sections