Source note · SIP session timers
RFC 4028 says a UAC using Require: timer or Proxy-Require: timer in its request is NOT RECOMMENDED.
Checked 2026-09-25
- Vendor
- IETF
- Product
- SIP
- Subsystem
- UAC behavior
- Deployment
- on-premises, multi-tenant, hybrid
- Region
- not restricted
- Release range
- RFC 4028
- Checked
- 2026-09-25
Sources
- RFC 4028: Session Timers in the Session Initiation Protocol (SIP) — IETF / RFC Editor · tier 1 standards and regulators · Section 7.1 (Generating an Initial Session Refresh Request)
Cite this note
APA
WarmTransfer. (2026, September 25). SIP session timers: source note sip-session-timers-require-not-recommended. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-session-timers-require-not-recommended
BibTeX
@misc{warmtransfer-claim-sip-session-timers-require-not-recommended,
title = {SIP session timers: source note sip-session-timers-require-not-recommended},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-session-timers-require-not-recommended},
note = {Source note sip-session-timers-require-not-recommended, checked 2026-09-25}
}