The Cisco IP Phone 6821 and 6851 have an End-of-Sale date of October 28, 2026 and a Last Date of Support of October 31, 2031, under bulletins EOL15897 and EOL15898, both announced April 29, 2026.
Checked 2026-09-22
- Vendor
- Cisco
- Product
- Cisco IP Phone 6800 Series
- Subsystem
- hardware lifecycle
- Deployment
- on-premises, multi-tenant
- Region
- not restricted
- Release range
- part numbers listed in EOL15897 and EOL15898
- Checked
- 2026-09-22
Sources
- End-of-Sale and End-of-Life Announcement for the Cisco IP Phone 6821 — Cisco Systems · tier 2 current vendor documentation · Table 1. End-of-Life Milestones > End-of-Sale Date; Last Date of Support
Cite this note
APA
WarmTransfer. (2026, September 22). Cisco IP phone end-of-sale and end-of-support dates by model: source note cisco-ip-phone-end-of-support-6821-6851-eos. WarmTransfer. https://warmtransfer.net/knowledge/claims/cisco-ip-phone-end-of-support-6821-6851-eos
BibTeX
@misc{warmtransfer-claim-cisco-ip-phone-end-of-support-6821-6851-eos,
title = {Cisco IP phone end-of-sale and end-of-support dates by model: source note cisco-ip-phone-end-of-support-6821-6851-eos},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cisco-ip-phone-end-of-support-6821-6851-eos},
note = {Source note cisco-ip-phone-end-of-support-6821-6851-eos, checked 2026-09-22}
}