Multiway audio-video conferencing with multiple communication channels per device

A method, comprising:

• sending, by a first device and to a server, indication of a first channel and a second channel for communicating content for an audio-video conference session, wherein the first channel and the second channel correspond to different types of communication interfaces;
• receiving, by the first device and from the server, indication of a first content stream and a second content stream available by a second device for the audio-video conference session, wherein the first content stream and the second content stream correspond to different bit rates of streaming content;
• sending, by the first device and to the server, a first request to subscribe to the first content stream via the first channel, and to subscribe to the second content stream via the second channel;
• and
• receiving, by the first device and from the server, the first content stream via the first channel.

A system comprising:

• a first device;
• a second device;
• and
• a server, wherein the server is configured to:
• receive, from the first device, indication of a first channel and a second channel for communicating content for an audio-video conference session, wherein the first channel and the second channel correspond to different types of communication interfaces;
• receive, from the second device, indication of a first content stream and a second content stream available by the second device for the audio-video conference session, wherein the first content stream and the second content stream correspond to different bit rates of streaming content;
• receive, from the first device, a first request to subscribe to the first content stream via the first channel, and to subscribe to the second content stream via the second channel;
• in response to receiving the first request,
• send, to the second device, an indication that the first device has subscribed to the first content stream and to the second content stream,
• forward, to the first device, the first content stream via the first channel;
• receive, from the first device, a second request to unsubscribe from the first content stream via the first channel;
• and
• in response to receiving the second request,
• send, to the second device, an indication that the first device does not subscribe to the first content stream, and
• forward, to the first device, the second content stream via the second channel based on the first device having previously subscribed to the second content stream via the second channel.