Source note · Troubleshooting DECT handsets on Webex Calling
Before the DBS-110/210 firmware 5.1.2 upgrade (from November 2024), Cisco required Voice VLAN to be disabled on switch ports connected to Cisco DECT bases so bases did not join the voice VLAN unintentionally.
Checked 2026-10-02
Voice VLAN is disabled on all switch ports connected to Cisco DECT bases before upgrade
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- DECT firmware
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- firmware 5.1.2 rollout, November 2024 to February 2025
- Checked
- 2026-10-02
Sources
- Announcements for the Webex Calling Devices — Cisco Webex · tier 2 current vendor documentation · Cisco DECT DBS-110/210 firmware upgrade to 5.1.2 (announced October 25, 2024)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting DECT handsets on Webex Calling: source note webex-calling-dect-troubleshooting-fw512-disable-voice-vlan. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-dect-troubleshooting-fw512-disable-voice-vlan
BibTeX
@misc{warmtransfer-claim-webex-calling-dect-troubleshooting-fw512-disable-voice-vlan,
title = {Troubleshooting DECT handsets on Webex Calling: source note webex-calling-dect-troubleshooting-fw512-disable-voice-vlan},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-calling-dect-troubleshooting-fw512-disable-voice-vlan},
note = {Source note webex-calling-dect-troubleshooting-fw512-disable-voice-vlan, checked 2026-10-02}
}