Abstract: A modem comprising entirely digital components and circuitry for receiving a digital signal of a first format from a first device, converting the digital signal to a digital signal of a second format and transmitting the digital signal of a second format to a second device. In one embodiment, a digital signal processor replaces at least a portion of the digital components and circuitry for receiving a digital signal of a first format and converting the digital signal to a digital signal of a second format and transmitting the digital signal of a second format to a second device.