Source note · SIP OPTIONS pings and trunk keepalives
In RFC 5626, a Flow-Timer header in a successful registration response gives the number of seconds the server will wait without seeing keepalives.
Checked 2026-09-24
- Vendor
- IETF
- Product
- SIP
- Subsystem
- SIP Outbound keepalive
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 5626 (October 2009)
- Checked
- 2026-09-24
Sources
- RFC 5626: Managing Client-Initiated Connections in the Session Initiation Protocol (SIP) — IETF / RFC Editor · tier 1 standards and regulators · Section 4.4
Cite this note
APA
WarmTransfer. (2026, September 24). SIP OPTIONS pings and trunk keepalives: source note sip-options-keepalive-rfc5626-flow-timer. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-options-keepalive-rfc5626-flow-timer
BibTeX
@misc{warmtransfer-claim-sip-options-keepalive-rfc5626-flow-timer,
title = {SIP OPTIONS pings and trunk keepalives: source note sip-options-keepalive-rfc5626-flow-timer},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-options-keepalive-rfc5626-flow-timer},
note = {Source note sip-options-keepalive-rfc5626-flow-timer, checked 2026-09-24}
}