Abstract: In one implementation, an apparatus includes an audio detection circuit, a central processor, and the switch. The audio detection circuit is configured to determine whether audio is present in an input signal and generate an audio presence indicator indicative of the audio. The central processor is configured to receive the audio presence indicator and a mute command. The central processor generates a switch command based on the mute command. The switch is configured to block the input signal from a digital signal processor in response to the switch command. The central processor generates a dynamic mute message that indicates audio is detected while a mute command is active.

Abstract: In one implementation, an apparatus includes an audio detection circuit, a central processor, and the switch. The audio detection circuit is configured to determine whether audio is present in an input signal and generate an audio presence indicator indicative of the audio. The central processor is configured to receive the audio presence indicator and a mute command. The central processor generates a switch command based on the mute command. The switch is configured to block the input signal from a digital signal processor in response to the switch command. The central processor generates a dynamic mute message that indicates audio is detected while a mute command is active.

Abstract: A connector that mechanically connects and provides power to two or more telecommunication devices in series, for example a phone and an expansion module or accessory device, from a single or multiple power source is provided. In one embodiment, the connector includes a support body and a pair of outwardly extending projections for connection to a base and expansion module.