Source note · SIP OPTIONS pings and trunk keepalives
Cisco recommends enabling SIP OPTIONS Ping on all SIP trunks, because Unified CM can then track trunk state as it changes instead of discovering it per call through timeouts.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- SIP trunk
- Deployment
- on-premises
- Region
- not restricted
- Release range
- documented for 8.6(1); later releases not verified here
- Checked
- 2026-09-24
Sources
- Cisco Unified Communications Manager Trunks (Session Management Edition deployment guide 8.6(1)) — Cisco · tier 2 current vendor documentation · section 'SIP OPTIONS Ping'
Cite this note
APA
WarmTransfer. (2026, September 24). SIP OPTIONS pings and trunk keepalives: source note sip-options-keepalive-cucm-recommend-enable. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-options-keepalive-cucm-recommend-enable
BibTeX
@misc{warmtransfer-claim-sip-options-keepalive-cucm-recommend-enable,
title = {SIP OPTIONS pings and trunk keepalives: source note sip-options-keepalive-cucm-recommend-enable},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-options-keepalive-cucm-recommend-enable},
note = {Source note sip-options-keepalive-cucm-recommend-enable, checked 2026-09-24}
}