RFC 1703 (rfc1703) - Page 2 of 9

Principles of Operation for the TPC

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:

     
     
     

   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.





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