| 摘要 |
The present invention relates to an emergency call system for an elevator, which can enable a user to make an interactive call and a multilateral call to an intercom in a management office and a general phone by using an intercom in the elevator and has a security access call control function for accessing a passenger in the elevator with security using a telephone terminal outside and making a call with the passenger. According to the configuration of the present invention, The present invention relates to a emergency call system for an elevator, which can enable a user to make an interactive call and a multilateral call to an intercom in a management office and a general phone by using an intercom in the elevator and has a security access call control function for accessing a passenger in the elevator with security using a telephone terminal outside and making a call with the passenger. Provided is an emergency call system for an elevator, which is configured to make a call by being connected to a telephone line to which a telephone number is assigned, wherein a DTMF tone generator, a DTMF receiver, a speech handsfree connected to a transceiving unit, and an MICOM are connected to each other, wherein a call connection is controlled by a program inputted to the MICOM in advance, the emergency call system is controlled to operate the DTMF tone generator under the control of an emergency button to generate a predetermined telephone number dialing tone to make a call with an external telephone terminal, when making the call, wherein the emergency call system is controlled to allow a call connection only when a previously agreed secret code number is inputted when receiving a call. [Reference numerals] (10) Switch unit; (20) MICOM; (30) DTMF receiver; (40) DTMF generator; (50) Speech handsfree; (70) Display unit; (80) Input/output terminal |
