(last updated 2008-06-09) 1. URI scheme name videotex 2. Status historical 3. URI scheme syntax "videotex://" login [ "/" videotexservice *[ parameter ] ] For details see the historical reference, a was in essence what STD 66 specifies as . 4. URI scheme semantics For details see the historical reference, the default port assigned by IANA is 516. For a rough idea "videotex" was an URI scheme in the direction of "tn3270" and "telnet". The "vemmi" URL scheme specified in RFC 2122 for port 575 was apparently designed to obsolete "videotex" URLs. 5. Encoding considerations The historical reference does not go into details. Picking an $EMULATION included values CEPT1 (BTX), CEPT2 (Teletel latin mode), CEPT2GREEK (Teletel greek mode), CEPT2ARABIC, CEPT3 (Prestel), CEPT4, NAPLPS, CAPTAIN, VT52, VT100, VT220, and a way for servers to determine the capabilities of the client. 6. Applications/protocols that use this URI scheme name Various Videotex services existed, among them Prestel, Minitel, BTX. In the time of the transition to the WWW client software needed to support legacy Videotex services of the corresponding providers. 7. Interoperability considerations HTTP and the WWW were soon more popular than all predecessors not limited to Videotex. 8. Security considerations See STD 66 for a discussion of the "user:password@" construct in an . 9. Contact (URI mailing list) 10. Author/Change controller The historical reference mentions an ETSI TE1 WG, the authors later published RFC 2122 on standards track, change control by the IETF is good enough for this historical scheme. 11. References draft-mavrakis-videotex-url-spec (1996), , RFC 2122 (vemmi URL scheme), RFC 3986 (STD 66). (file created 2008-06-06)