Patent ID: 7733849
Filing Date: 2010-06-08
Classification: H04M

Abstract:
1. A voice communications system comprising either a general subscriber telephone set or a broadband telephone set, and voice communications apparatus interposed in communication between said telephone set and at least one of a public switched telephone network and a broadband communications network, wherein said voice communications apparatus includes: a first circuit for determining a class of said telephone set comprised; and a second circuit operative in response to the class determined for changing a property of an in-channel signal transmitted between said telephone set comprised and said voice communications apparatus, wherein there is provided on the broadband communications network a database for retrieving data relevant to the class of a telephone set, said first circuit providing said database with a signal from said telephone set comprised or information on a characteristic value managed by said telephone set comprised, or information on a response signal or a change in the response signal to acquire the class of said comprised telephone set from said database, the response signal being obtained from said comprised telephone set by sending out a signal to said telephone set comprised or by changing a characteristic value of a connection line to said telephone set comprised.