| 摘要 |
PROBLEM TO BE SOLVED: To provide an intercom system for performing setting, concerning the adjustment of call voice without requiring labor and time. SOLUTION: The system comprises an internal intercom master set 2 arranged in the room of a building, such as a housing complex, etc.; and a common entrance slave set 3 which is arranged in the common entrance of the building and provided with a slave set speaker 22 for outputting the voice which is transmitted from the internal intercom master set 2 and an output voice filter 24 for changing the frequency components of the voice, which is outputted from the slave set speaker 22, in response to an arrangement environment. COPYRIGHT: (C)2006,JPO&NCIPI |
