Source note · SIP session timers
RFC 4028's preference for UPDATE refreshes and RFC 3311's preference for re-INVITE on confirmed dialogs address different cases (content-free refresh versus user-visible session change) rather than contradicting each other.
inferred · Checked 2026-09-25
- Vendor
- IETF
- Product
- SIP
- Subsystem
- refresh method
- Deployment
- on-premises, multi-tenant, hybrid
- Region
- not restricted
- Release range
- RFC 4028 and RFC 3311
- Status
- inferred
- Checked
- 2026-09-25
Sources
- RFC 4028: Session Timers in the Session Initiation Protocol (SIP) — IETF / RFC Editor · tier 1 standards and regulators · Section 7.4, read with RFC 3311 Section 5.1
Cite this note
APA
WarmTransfer. (2026, September 25). SIP session timers: source note sip-session-timers-update-vs-reinvite-scope. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-session-timers-update-vs-reinvite-scope
BibTeX
@misc{warmtransfer-claim-sip-session-timers-update-vs-reinvite-scope,
title = {SIP session timers: source note sip-session-timers-update-vs-reinvite-scope},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-session-timers-update-vs-reinvite-scope},
note = {Source note sip-session-timers-update-vs-reinvite-scope, checked 2026-09-25}
}