Source note · DNS SRV and service discovery for SIP
RFC 5922 states that implementations must not match any form of wildcard such as a leading '*.' when checking SIP domain identities in certificates.
disputed · Checked 2026-09-24
Implementations MUST NOT match any form of wildcard, such as a leading "." or "*." with any other DNS label or sequence of labels.
- Vendor
- IETF
- Product
- SIP over TLS
- Subsystem
- TLS identity
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 5922 (June 2010)
- Status
- disputed
- Checked
- 2026-09-24
Sources
- RFC 5922: Domain Certificates in the Session Initiation Protocol (SIP) — RFC Editor / IETF · tier 1 standards and regulators · Section 7.2
Cite this note
APA
WarmTransfer. (2026, September 24). DNS SRV and service discovery for SIP: source note dns-srv-voice-rfc5922-no-wildcards. WarmTransfer. https://warmtransfer.net/knowledge/claims/dns-srv-voice-rfc5922-no-wildcards
BibTeX
@misc{warmtransfer-claim-dns-srv-voice-rfc5922-no-wildcards,
title = {DNS SRV and service discovery for SIP: source note dns-srv-voice-rfc5922-no-wildcards},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/dns-srv-voice-rfc5922-no-wildcards},
note = {Source note dns-srv-voice-rfc5922-no-wildcards, checked 2026-09-24}
}