CUBE's options-keepalive state for its dial-peers is tracked separately from Unified CM's SIP trunk status, so one side can show the trunk up while the other shows it down.
inferred · Checked 2026-10-02
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- options-keepalive
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Status
- inferred
- Checked
- 2026-10-02
Sources
- Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - SIP Trunk Monitoring — Cisco · tier 2 current vendor documentation · Overview (combined with technote 214218 Configure section)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Unified CM SIP trunks that show No Service: source note cucm-sip-trunk-no-service-troubleshooting-cube-independent. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-sip-trunk-no-service-troubleshooting-cube-independent
BibTeX
@misc{warmtransfer-claim-cucm-sip-trunk-no-service-troubleshooting-cube-independent,
title = {Troubleshooting Unified CM SIP trunks that show No Service: source note cucm-sip-trunk-no-service-troubleshooting-cube-independent},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-sip-trunk-no-service-troubleshooting-cube-independent},
note = {Source note cucm-sip-trunk-no-service-troubleshooting-cube-independent, checked 2026-10-02}
}