Source note · E.164 numbering and dial string normalization
A tel URI local number must carry a phone-context parameter that identifies the scope in which it is valid.
Checked 2026-09-23
Local numbers MUST have a 'phone-context' parameter that identifies the scope of their validity.
- Vendor
- IETF
- Product
- tel URI
- Subsystem
- syntax
- Deployment
- standard
- Region
- not restricted
- Release range
- RFC 3966
- Checked
- 2026-09-23
Sources
- RFC 3966: The tel URI for Telephone Numbers — IETF / RFC Editor · tier 1 standards and regulators · Section 5.1.5 Local Numbers
Cite this note
APA
WarmTransfer. (2026, September 23). E.164 numbering and dial string normalization: source note e164-numbering-tel-local-phone-context. WarmTransfer. https://warmtransfer.net/knowledge/claims/e164-numbering-tel-local-phone-context
BibTeX
@misc{warmtransfer-claim-e164-numbering-tel-local-phone-context,
title = {E.164 numbering and dial string normalization: source note e164-numbering-tel-local-phone-context},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/e164-numbering-tel-local-phone-context},
note = {Source note e164-numbering-tel-local-phone-context, checked 2026-09-23}
}