Source note · SIP trunk redundancy and failover design
RFC 3261 defines OPTIONS as a request for querying capabilities that may be sent outside a dialog, and it is the method platforms reuse as a trunk keepalive.
Checked 2026-09-25
- Vendor
- IETF
- Product
- SIP
- Subsystem
- OPTIONS method
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3261, current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- RFC 3261 — SIP: Session Initiation Protocol — IETF / RFC Editor · tier 1 standards and regulators · Section 11 Querying for Capabilities
Cite this note
APA
WarmTransfer. (2026, September 25). SIP trunk redundancy and failover design: source note sip-trunk-redundancy-design-rfc3261-options-ood. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-redundancy-design-rfc3261-options-ood
BibTeX
@misc{warmtransfer-claim-sip-trunk-redundancy-design-rfc3261-options-ood,
title = {SIP trunk redundancy and failover design: source note sip-trunk-redundancy-design-rfc3261-options-ood},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-redundancy-design-rfc3261-options-ood},
note = {Source note sip-trunk-redundancy-design-rfc3261-options-ood, checked 2026-09-25}
}