Source note · Wrong or missing caller ID on outbound calls
For STIR signing, RFC 8224 canonicalizes telephone numbers by dropping '+', dashes, parentheses and other non-digits except '#' and '*', and says implementations SHOULD convert the number to E.164 form, adding a country code if necessary.
Checked 2026-09-25
- Vendor
- IETF
- Product
- SIP STIR
- Subsystem
- call authentication
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 8224
- Checked
- 2026-09-25
Sources
- RFC 8224: Authenticated Identity Management in the Session Initiation Protocol (SIP) — IETF / RFC Editor · tier 1 standards and regulators · Section 8.3 (canonicalization of telephone numbers)
Cite this note
APA
WarmTransfer. (2026, September 25). Wrong or missing caller ID on outbound calls: source note caller-id-presentation-problems-stir-tn-canonical. WarmTransfer. https://warmtransfer.net/knowledge/claims/caller-id-presentation-problems-stir-tn-canonical
BibTeX
@misc{warmtransfer-claim-caller-id-presentation-problems-stir-tn-canonical,
title = {Wrong or missing caller ID on outbound calls: source note caller-id-presentation-problems-stir-tn-canonical},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/caller-id-presentation-problems-stir-tn-canonical},
note = {Source note caller-id-presentation-problems-stir-tn-canonical, checked 2026-09-25}
}