An SRC must include the siprec option tag in the Require header when initiating a recording session so that a UA without Session Recording Protocol support rejects the INVITE with 420 (Bad Extension).

Checked 2026-09-25

Vendor
IETF
Product
SIPREC
Subsystem
signalling
Deployment
any
Region
not restricted
Release range
RFC 7866
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). SIPREC call recording interface: source note siprec-recording-rfc7866-require-siprec. WarmTransfer. https://warmtransfer.net/knowledge/claims/siprec-recording-rfc7866-require-siprec

BibTeX

@misc{warmtransfer-claim-siprec-recording-rfc7866-require-siprec,
  title  = {SIPREC call recording interface: source note siprec-recording-rfc7866-require-siprec},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/siprec-recording-rfc7866-require-siprec},
  note   = {Source note siprec-recording-rfc7866-require-siprec, checked 2026-09-25}
}

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