CCX 400 and upgrade failure via TAP

Occasional Advisor

Re: Hello all, we just released CCX 400, 500, 60Re: CCX 400 and upgrade failure via

Hello Steffen,


Correct its a CCX400, the upgrade was via TAC and the firmware is currently, device MAC is 64:16:7F:CC:5C:DB.




Message 41 of 42
Polycom Employee & Community Manager

Re: Hello all, we just released CCX 400, 500, 60Re: CCX 400 and upgrade failure via

Hello @andrew_mc , @Scratchy  and all,


As previously stated within the community the CCX 400 was developed by a different team so it did initially not have the known UC Software running.


If the CCX is still on Software 1.0.0 or 1.0.1 download the latest USB UC Software software for CCX 400 from >here<

  • Go to Previous Releases
  • Download Poly CCX 400 1.0.X to Poly UCS USB Upgrade (Teams)
  • Rename the into 
  • Copy the file to a FAT32 formatted USB stick and place it into a CCX 400 running and follow the on-screen prompts

A video can be found >here< showing the above


Further below are instructions that can be followed to configure the CCX 400 in one go.


With the ( and previous 6.2.21) we added this to the phone to provide additional features it.

These are:


  • Poly Audio / Acoustic Fence / Noise Block AI
  • DHCP Option 161/66
  • Poly Provisioning (RPRM, PDMS-E/SP)
  • VLAN Discovery – LLDP/CDP/DVD
  • Full UCS 802.1x
  • Web Proxy
  • Web Admin Interface
  • Skype Base Profile

The previous software 1.0.0 or 1.0.1 did not support any of the above and therefore, once upgraded to a user will need to manually confirm:


  • New Password per California SB-327 law
  • End-User License Agreement
  • Timezone
  • Language


We are aware that this may cause additional manual action and users faced by this have 2 options:


  • Use a USB stick and download the attached and unzip the files 000000000000.cfg and Teams.cfg and copy these to the USB stick

    The Teams.cfg file can be amended to change the password to anything else from the pre-set 789
    Plug the USB Stick into the Device and then upgrade via TAC.


  • Setup a provisioning server using DHCP option 161 (FTP, HTTP or tftp) as described >here< and host the above-mentioned files.
    This will, in addition, also enable the Web Interface and various other settings helping to troubleshoot the phone if required.


We are looking into why the phone would switch to the Skype for Business base profile instead of staying at Microsoft Teams.

Best regards


Steffen Baier


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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