Source note · Troubleshooting Cisco IP phones stuck upgrading firmware
8800 firmware 14.4(1) lists Unified CM 8.5(1) and later as supported call control.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco IP Phone 8800 Series
- Subsystem
- compatibility
- Deployment
- on-premises
- Region
- not restricted
- Release range
- firmware 14.4(1)
- Checked
- 2026-10-02
Sources
- Cisco IP Phone 8800 Release Notes for Firmware Release 14.4(1) — Cisco Systems · tier 2 current vendor documentation · Related Hardware and Software / Unified CM compatibility
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Cisco IP phones stuck upgrading firmware: source note cucm-phone-firmware-upgrade-troubleshooting-supported-cucm. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-upgrade-troubleshooting-supported-cucm
BibTeX
@misc{warmtransfer-claim-cucm-phone-firmware-upgrade-troubleshooting-supported-cucm,
title = {Troubleshooting Cisco IP phones stuck upgrading firmware: source note cucm-phone-firmware-upgrade-troubleshooting-supported-cucm},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-upgrade-troubleshooting-supported-cucm},
note = {Source note cucm-phone-firmware-upgrade-troubleshooting-supported-cucm, checked 2026-10-02}
}