Source note · Cisco IP phone firmware management
Installing new firmware updates the phone-model device default to the new version, and Cisco recommends setting the default back to the previous load if the organisation is not ready to upgrade phones.
Checked 2026-09-25
If you are not prepared to upgrade phones at this time, we recommend that you adjust this value back to the previous firmware load.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Device Defaults
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-25
Sources
- Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Manage Device Firmware — Cisco Systems · tier 2 current vendor documentation · Manage Device Firmware > Install a Device Pack or Individual Firmware, note after step 6
Cite this note
APA
WarmTransfer. (2026, September 25). Cisco IP phone firmware management: source note cucm-phone-firmware-default-overwritten. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-default-overwritten
BibTeX
@misc{warmtransfer-claim-cucm-phone-firmware-default-overwritten,
title = {Cisco IP phone firmware management: source note cucm-phone-firmware-default-overwritten},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-default-overwritten},
note = {Source note cucm-phone-firmware-default-overwritten, checked 2026-09-25}
}