Source note · DECT and wireless voice devices
Cisco Wireless Phone 840 and 860 devices need firmware 1.6 or later to register to Webex Calling, and are provisioned in Control Hub by MAC address.
Checked 2026-09-24
Ensure that the minimum firmware version for 840 or 860 devices on Webex Calling is 1.6.
- Vendor
- Cisco
- Product
- Cisco Wireless Phone 840
- Subsystem
- provisioning
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Integrating Cisco Wireless Phone 840 and 860 — Cisco Webex · tier 2 current vendor documentation · Prerequisites; Add the phone in Control Hub
Cite this note
APA
WarmTransfer. (2026, September 24). DECT and wireless voice devices: source note dect-wireless-voice-800-webex-min-fw. WarmTransfer. https://warmtransfer.net/knowledge/claims/dect-wireless-voice-800-webex-min-fw
BibTeX
@misc{warmtransfer-claim-dect-wireless-voice-800-webex-min-fw,
title = {DECT and wireless voice devices: source note dect-wireless-voice-800-webex-min-fw},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dect-wireless-voice-800-webex-min-fw},
note = {Source note dect-wireless-voice-800-webex-min-fw, checked 2026-09-24}
}