With OPTIONS keepalive, a SIP dial peer is busied out only when all of its destinations (for example every server-group member) fail to respond.
Checked 2026-09-24
A dial-peer is marked as busyout, only if all the destinations in the dial-peer have a heartbeat failure and fail to respond.
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- dial-peer states
- Deployment
- on-premises
- Region
- not restricted
- Release range
- IOS XE 17.6 onwards
- Checked
- 2026-09-24
Sources
- Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - SIP Trunk Monitoring — Cisco · tier 2 current vendor documentation · SIP Trunk Monitoring > Information About SIP Out-of-Dialog OPTIONS Ping Group
Cite this note
APA
WarmTransfer. (2026, September 24). CUBE dial-peer matching and voice class URI and translation profiles: source note cube-dial-peers-keepalive-busyout-all. WarmTransfer. https://warmtransfer.net/knowledge/claims/cube-dial-peers-keepalive-busyout-all
BibTeX
@misc{warmtransfer-claim-cube-dial-peers-keepalive-busyout-all,
title = {CUBE dial-peer matching and voice class URI and translation profiles: source note cube-dial-peers-keepalive-busyout-all},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cube-dial-peers-keepalive-busyout-all},
note = {Source note cube-dial-peers-keepalive-busyout-all, checked 2026-09-24}
}