Source note · SIP registration failures
RFC 8760 requires a UAS to always include a qop parameter in WWW-Authenticate and Proxy-Authenticate header values.
Checked 2026-09-25
- Vendor
- not restricted
- Product
- SIP
- Subsystem
- authentication
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 8760
- Checked
- 2026-09-25
Sources
- RFC 8760: The Session Initiation Protocol (SIP) Digest Access Authentication Scheme — RFC Editor / IETF · tier 1 standards and regulators · sentence beginning 'A UAS MUST always send a "qop" parameter'
Cite this note
APA
WarmTransfer. (2026, September 25). SIP registration failures: source note sip-registration-failures-qop-mandatory. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-registration-failures-qop-mandatory
BibTeX
@misc{warmtransfer-claim-sip-registration-failures-qop-mandatory,
title = {SIP registration failures: source note sip-registration-failures-qop-mandatory},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-registration-failures-qop-mandatory},
note = {Source note sip-registration-failures-qop-mandatory, checked 2026-09-25}
}