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[Software] RealPresence Trio 8800 UC Software Rev AB has been released

Polycom Employee & Community Manager

[Software] RealPresence Trio 8800 UC Software Rev AB has been released

Hello Everyone,


We are happy to announce the availability of Polycom® UC Software 5.4.3 RevAB, with associated utilities and documents on the RealPresence Trio product support web page => here <= for download.


The current build ID for the sip.ld and resource files is


UC Software 5.4.3 RevAB for Polycom RealPresence Trio™ is interoperable with open-SIP call platforms, Skype™ for Business Online, Skype™ for Business 2015, Microsoft® Lync® 2013 and Microsoft® Lync® 2010 on-premises, and Polycom® RealPresence® Platform.


Polycom UC Software 5.4.3 RevAB supports the following Polycom endpoints:

  • RealPresence Trio 8800
  • RealPresence Trio Visual+ accessory


What is new in this release?

  • Reset Video Mute
  • Synchronized Volume Control with a USB-Connected Computer
  • Use RealPresence Trio 8800 System as a Speakerphone for Mac Computers
  • Dialpad displays digits when entering during a call
  • When paired with the RealPresence Trio Visual+ system, one can join future Skype for Business meetings scheduled on the Calendar Details screen, on the RealPresence Trio 8800 system, by pressing the Join soft key


What is available now on the web?

  • UC Software 5.4.3 Rev AB image and CAB file
  • Release Notes for 5.4.3 Rev AB [PDF]
  • Regulatory Notices [PDF]
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