摘要 |
A protocol integrating videotex communication system includes a group of data base centers (101, 102, 103) conforming to various presentation level protocol syntax (PLPS) of a videotex, a plurality of subscriber's terminals (112, 113, 116) conforming to PLPS corresponding to the group of data base centers, and a device for interconnecting the group of data base centers conforming to the various PLPS and the plurality of subscriber's terminals, which includes a gateway unit (104) connected to the plurality of data base centers, a videotex communication control apparatus (105, 106 - 109) connected to the gateway unit, and an interconnection unit having a single ISDN exchange apparatus (110, 111) for connecting the videotex communication control apparatus to the plurality of subscriber's terminals. |