Source note · SIP trunk carrier turn-up and acceptance testing
In SIP digest authentication a user agent server challenges with 401 Unauthorized, while a proxy challenges with 407 Proxy Authentication Required.
Checked 2026-09-25
- Vendor
- IETF
- Product
- SIP
- Subsystem
- authentication
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 3261
- Checked
- 2026-09-25
Sources
- RFC 3261 — SIP: Session Initiation Protocol — IETF / RFC Editor · tier 1 standards and regulators · Section 22 (Usage of HTTP Authentication)
Cite this note
APA
WarmTransfer. (2026, September 25). SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-rfc3261-401-407. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-rfc3261-401-407
BibTeX
@misc{warmtransfer-claim-sip-trunk-carrier-turn-up-rfc3261-401-407,
title = {SIP trunk carrier turn-up and acceptance testing: source note sip-trunk-carrier-turn-up-rfc3261-401-407},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-trunk-carrier-turn-up-rfc3261-401-407},
note = {Source note sip-trunk-carrier-turn-up-rfc3261-401-407, checked 2026-09-25}
}