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[Software] UC Software 5.4.1 has been released

Polycom Employee & Community Manager

[Software] UC Software 5.4.1 has been released

Hello Everyone,


We are extremely excited to announce the availability of the much anticipated Polycom® UC Software 5.4.1,  with associated utilities and documents on the Polycom Product Support web page (


UC Software is a Major release which expands our VVX Business media phones.


Polycom UC Software RTS 55 supports the following Polycom endpoints:

  • VVX 101 business media phones
  • VVX 201 business media phones
  • VVX 300/310 business media phones
  • VVX 301/311 business media phones (new phones introduced in this release)
  • VVX 400/410 business media phones
  • VVX 401/411 business media phones (new phones introduced in this release)
  • VVX 500 business media phones
  • VVX 501 business media phones (new phones introduced in this release)
  • VVX 600 business media phones
  • VVX 601 business media phones (new phones introduced in this release)
  • VVX 1500 business media phones
  • SoundStructure VoIP Interface


Polycom UC Software 5.4.1 supports the following Polycom accessories:


  • Polycom® VVX® Camera
  • Polycom® VVX® Expansion Module

Note:  VVX 1500 is for Open SIP deployments only


Polycom UC Software 5.4.1 includes the features and functionality of previous releases and includes the following new features:

  • Enhanced Flexible Line Key (EFLK) customization for Skype for Business
  • Master Key Identifier (MKI)
  • Shared Line Appearance for Lync (SLA)
  • Support for Simplified Chinese font on VVX 101
  • Support for Better Together over Ethernet (BToE) on Windows 10®
  • Smart Search for Lync Address Book Service
  • Incoming Call Handling for Locked Phones for Lync/SfB
  • Global Directory Synchronization
  • For Full list of Features and fixes please have a look at the Release Notes.


What is available now on web?

  • UC Software 5.4.1( Split & Combined)
    Polycom recommends the Split Image
  • Release Notes for 5.4.1[PDF]
  • Administrators Guide 5.4.1[PDF]
  • Lync Deployment guide 5.4.1 [PDF]
  • BToE 3.3.0


How to download UCS 5.4.1 software, release notes & documents:


You can obtain the software and the related documentation from the supported phone model pages:


Software is also available on the Polycom Hosted server and the Phone can be upgraded by using the phone’s web Interface.


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