RFC 3191 (rfc3191) - Page 2 of 13
Minimal GSTN address format in Internet Mail
Alternative Format: Original Text Document
RFC 3191 Minimal GSTN address format in Internet Mail October 2001
This memo describes the MINIMAL addressing method to encode GSTN
addresses into e-mail addresses and the standard extension mechanism
to allow definition of further standard elements. The opposite
problem, i.e., to allow a traditional numeric-only GSTN device user
to access the e-mail transport service, is not discussed here.
The IANA registration templates which MUST be used to register any
standard element defined according to this specification are given in
the "IANA Considerations" chapter (section 7 of this document).
All implementations supporting this GSTN over e-mail service MUST
support as a minimum the specification described in this document.
The generic complex case of converting the entirety of GTSN
addressing into e-mail is out of scope in this minimal specification.
1.1 Terminology and Syntax conventions
In this document the formal definitions are described using ABNF
syntax, as defined into [7]. This memo also uses some of the "CORE
DEFINITIONS" defined in "APPENDIX A - CORE" of that document. The
exact meaning of the capitalized words
"MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
"SHOULD NOT", "RECOMMENDED", "MAY", "OPTIONAL"
is defined in reference [6].
In this document the following new terms are also defined:
I-pstn device:
a device which has an Internet domain name and it is able to
communicate either directly or indirectly with the GSTN
network;
mta-I-pstn:
the Internet domain name which identifies uniquely an I-pstn
device over the Internet;
pstn-email:
the complete Internet e-mail address structure which is used to
transport a GSTN address over the Internet e-mail service.
2. Minimal GSTN address
The minimal specification of a GSTN address within an e-mail address
is as follows:
Allocchio Standards Track