Source note · Troubleshooting Cisco IP phones stuck upgrading firmware
When looking for a TFTP server, a Cisco IP Phone 8800 prefers manually assigned TFTP servers over DHCP-assigned ones, regardless of protocol.
Checked 2026-10-02
When the phone looks for the TFTP server, the phone gives precedence to manually assigned TFTP servers, regardless of the protocol.
- Vendor
- Cisco
- Product
- Cisco IP Phone 8800 Series
- Subsystem
- TFTP
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager - Cisco IP Phone Installation — Cisco Systems · tier 2 current vendor documentation · Configure Network Settings > IPv4 Fields
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Cisco IP phones stuck upgrading firmware: source note cucm-phone-firmware-upgrade-troubleshooting-tftp-precedence. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-upgrade-troubleshooting-tftp-precedence
BibTeX
@misc{warmtransfer-claim-cucm-phone-firmware-upgrade-troubleshooting-tftp-precedence,
title = {Troubleshooting Cisco IP phones stuck upgrading firmware: source note cucm-phone-firmware-upgrade-troubleshooting-tftp-precedence},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-upgrade-troubleshooting-tftp-precedence},
note = {Source note cucm-phone-firmware-upgrade-troubleshooting-tftp-precedence, checked 2026-10-02}
}