Internet Assigned Numbers Authority

Caller-ID Numbering Plans

Created
2004-10-05
Last Updated
2005-01-21
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Caller-ID Numbering Plans Tokens

Registration Procedure(s)
Standards Action
Reference
[RFC3939]
Available Formats

CSV
Token Description Reference
unknown The number's semantics are unknown. This value is the default in the absence of this parameter. [RFC3939]
local The number only has meaning within the domain of the sending system identified by the [RFC2822] From field of the message. [RFC3939]
e164 The number's semantics are described in [ITU-T Recommendation E.164 (1997), "The international public telecommunication numbering plan"]. [RFC3939]