Patent ID: 9031211
Filing Date: 2015-05-12
Classification: H04M

Abstract:
1. A voice processing apparatus, comprising: an analog circuit portion integrated on a first single analog integrated circuit, said analog circuit portion comprising a first interface to connect to a subscriber line, and at least one of an analog filter and an amplifier operationally coupled to the first interface; a digital circuit portion separate from said analog circuit portion, said digital circuit portion comprising an interface to connect to an IP-based network; and a connection between said analog circuit portion and said digital circuit portion, wherein said connection is a digital connection and wherein said analog circuit portion comprises a first converter between analog signals and digital signals, wherein the digital circuit portion is integrated on a single digital integrated circuit, and wherein the digital circuit portion comprises a battery feed circuit, the battery feed circuit providing a digital value corresponding to an analog DC current value provided on the first interface to connect to the subscriber line.