A hub includes: a multi-function control unit; a microprocessor; at least one sharing port connected to the multi-function control unit, which controls the at least one sharing port to connect with a computing device; a USB audio control unit connected to the multi-function control unit; an audio processing module connected to the USB audio control unit and the microprocessor; a wireless module connected to the audio processing module and the microprocessor and used for wireless communication with a mobile device; and an audio input and output module connected to the audio processing module and the microprocessor, and including an audio cable jack used for connecting with an audio input and output device, and/or a built-in speaker and a microphone. The microprocessor controls the audio processing module to select and process audio signal sharing among the computing device, the mobile device, and the audio input and output device.

Aspects of the present disclosure involve systems, methods, computer program products, and the like, for linking a plurality of conferences that are occurring on separate conference bridges. In one embodiment, the network is configured to determine when two or more related conferences are occurring on separate conference bridges. Related conferences may be any two conferences that share the same attribute. For example, two conferences may be initiated on separate conference bridges under the same account number for a user of the system. When the related conferences are detected, the network links the two conferences through the network such that participants in both conferences may now interact as if in a single collaboration conference. The linking allows the network to combine related conferences without the need to disconnect anyone conference from a conference bridge.

The present disclosure is directed towards a semi-global mute system and method. In one example, a method for muting communication devices includes receiving a message indicating the semi-global mute switch has been activated. The method further includes upon receiving the message: preventing a co-located communication device from receiving the audio signals transmitted from the first audio communication device, permitting the first audio communication device to transmit signals to the remote communication device, and permitting the first audio communication device and the co-located communication device to receive audio signals transmitted from the remote communication device.