GSTN Address Element Extensions in E-mail Services

Abstract

There are numerous applications where there is a need for interaction between the GSTN addressing and Internet addressing. This memo defines a full syntax for one specific case, where there is a need to represent GSTN addresses within Internet e-mail addresses. This full syntax is a superset of a minimal syntax which has been defined in [1].

Common Profile for Presence (CPP)

“…When mapping the service described in this memo, mappings that place special information into the im: address local-part MUST use the meta-syntax defined in RFC2846 [7].…”

Common Profile for Instant Messaging (CPIM)

“…When mapping the service described in this memo, mappings that place special information into the im: address local-part MUST use the meta-syntax defined in RFC 2846 [7].…”

Text String Notation for Dial Sequences and Global Switched Telephone Network (GSTN) / E.164 Addresses

“…Within actual uses of subaddresses, some specific services can limit the possible set of phone-string elements allowed. In particular, there are ISDN subaddresses [2] [8], which restrict the phone-string elements to 1*( DIGIT / written-sep ) and service specific subaddresses, like the fax service T.33 subaddress [5] [7], which restrict phone-string elements to 1*( DIGIT ).…”