INTERPHONE SYSTEM WITH TRANSFER FUNCTION AND COMMUNICATION TERMINAL

摘要

PROBLEM TO BE SOLVED: To obtain an interphone system with a transfer function where a master terminal receiving a call signal from a slave terminal automatically dials an external communication terminal registered in advance to connect the communication terminal and the slave terminal so as to make a speech with each other. SOLUTION: The interphone system is provided with a slave terminal 1 that has a call means 12 and a speech means 11 and with a master terminal 2 that has a speech means 24 and is connected to the slave terminal 1 through a leased line 3. The master terminal 2 is provided with a removable mobile phone 4, an automatic dial means 28 that receives a call signal from the call means 12 to call the communication terminal registered in advance via the mobile phone 4, a transfer setting means 26 that selects the priority of the call by the automatic dial means 28, and a main control means 21 that connects the speech means 11 of the slave terminal 1 and the communication terminal via the mobile phone.