The TAC device pack procedure copies the current Device Defaults firmware values before installation and restores them afterwards so phones are not upgraded unintentionally.

Checked 2026-09-25

Vendor
Cisco
Product
Cisco Unified Communications Manager
Subsystem
device packs
Deployment
on-premises
Region
not restricted
Release range
written for 11.x era
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Cisco IP phone firmware management: source note cucm-phone-firmware-devpack-save-defaults. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-devpack-save-defaults

BibTeX

@misc{warmtransfer-claim-cucm-phone-firmware-devpack-save-defaults,
  title  = {Cisco IP phone firmware management: source note cucm-phone-firmware-devpack-save-defaults},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-phone-firmware-devpack-save-defaults},
  note   = {Source note cucm-phone-firmware-devpack-save-defaults, checked 2026-09-25}
}

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