| 摘要 |
PURPOSE:To make only the communication with a specific subscriber possible at a desired time, by causing the subscriber himself, who desires the communication with the specific subscriber, to perform the register operation. CONSTITUTION:Central control device CC2 decodes received special number 129 and stores following answer back code WB of subscriber SB into the corresponding part of subscriber SA of answer back code storage part W of subscriber data area SDA in memory M2. Next, code WB is transmitted to the telex exchange. Then, stored code WB and code WB received from originating subscriber SB are collated by collating part CMP2. If they agree with each other as the result of collation, communication line (3) is set in network NW to make the communication between subscribers SA and SB possible |
