| 摘要 |
The specification discloses a circuit for automatically dialing pre-recorded telephone numbers and transmitting a pre-recorded message to the number dialed. The circuit is triggered by a contact closure indicating an emergency condition. The triggering energizes the recording media drive motor and selects the appropriate information track on the recording media for connection to the telephone lines. Dialing is accomplished by a relay driving arrangement which amplifies pre-recorded dial pulse information and attenuates the message information.
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