RFC 1703 (rfc1703) - Page 2 of 9
Principles of Operation for the TPC
Alternative Format: Original Text Document
RFC 1703 Radio Paging -- Technical Procedures October 1994 2. Naming, Addressing, and Routing A radio pager is identified by a telephone number, e.g., +1 415 940 8776 where "+1" indicates the IDDD country code, and the remaining string is a telephone number within that country. In addition to a telephone number, a PIN may also be required to uniquely identify a radio pager. 2.1. Addressing This number is used to construct the address of a radio paging server, which forms the recipient address for the message, e.g., one of: pager.ATOM@6.7.7.8.0.4.9.5.1.4.1.tpc.int pager-alpha.ATOM@6.7.7.8.0.4.9.5.1.4.1.tpc.int pager-numeric@6.7.7.8.0.4.9.5.1.4.1.tpc.int where "ATOM" is an RFC 822 atom [1], an opaque string for use in recipient identification when communicating with the paging network, and the domain-part is constructed by reversing the telephone number, converting each digit to a domain-label, and being placed under "tpc.int". (The telephone number must not include any international access codes.) Note that the mailbox syntax is purposefully restricted in the interests of pragmatism. To paraphrase STD 11, RFC 822, an atom is defined as: atom = 1*atomchar atomchar=/ / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~" Finally, note that some Internet mail software (especially gateways from outside the Internet) impose stringent limitations on the size of a mailbox-string. Thus, originating user agents should take care in limiting the local-part to no more than 70 or so characters. Rose
