This package flashes software to your phone.
4.0.1.1.1401
https://support.polycom.com/content/dam/polycom-support/products/voice/business-media-phones/release-notes/en/uc-software-release-notes-4-0-11-rev-k.pdf
https://support.polycom.com/content/dam/polycom-support/products/voice/soundstation-ip-series/user/en/uc-ag-4--0--5.pdf