I use WebEx, but I can use my video conferencing equipment to call into Google Meet, Microsoft Teams, and Amazon Chime because they are all interoperable. This

I use WebEx, but I can use my video conferencing equipment to call into Google Meet, Microsoft Teams, and Amazon Chime because they are all interoperable. This is not the case with Zoom. Standards exist for video conferencing, but Zoom refuses to work with them simply because they think their market position will allow it.