Abstract: A system for providing audio communication may include a host device. The host device may include a non-transitory medium with stored instructions that cause a host device to access a server providing voice over internet protocol (VoIP) service, initiate a duplex communication session via the VoIP service, wherein the duplex communication session is performed via a single voice connection, transmit a session invitation to a plurality of edge devices, transmit a voice communication between the host device and the first group of edge devices via the first virtual channel; and, upon a first input event from the host device, simultaneously switch the voice communication from transmitting between the host device and the first group of edge devices to transmitting between the host device and both the first group of edge devices and the second group of edge devices via the respective first virtual channel and a second virtual channel.