Source note · Troubleshooting DECT handsets on Webex Calling
A flashing red base LED with handsets showing No SIP Reg means the base cannot communicate with the call control system.
Checked 2026-10-02
The base station can't communicate with the call control system.
- Vendor
- Cisco
- Product
- Cisco IP DECT 6800 Series
- Subsystem
- DECT base station
- Deployment
- multi-tenant, on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Cisco IP DECT 6800 Series Administration Guide - Troubleshooting — Cisco Systems · tier 2 current vendor documentation · Operational Problems with Base Station > Base Station LED Flashes Red and Handset Displays No SIP Reg Message
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting DECT handsets on Webex Calling: source note webex-calling-dect-troubleshooting-led-flash-red-no-sip-reg. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-dect-troubleshooting-led-flash-red-no-sip-reg
BibTeX
@misc{warmtransfer-claim-webex-calling-dect-troubleshooting-led-flash-red-no-sip-reg,
title = {Troubleshooting DECT handsets on Webex Calling: source note webex-calling-dect-troubleshooting-led-flash-red-no-sip-reg},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-calling-dect-troubleshooting-led-flash-red-no-sip-reg},
note = {Source note webex-calling-dect-troubleshooting-led-flash-red-no-sip-reg, checked 2026-10-02}
}