Voice rooms hierarchy

The only reason my guild is still using Team Speak is the ability to create a hierarchy of voice rooms. There your can be in voice room  and speek to other rooms by pressing a intended key, speak immediately to all rooms associated with the current voice room. For example: the guild is going to mass PvP, in the discord everyone will have to go into one room in order to interact to each other. As a result, we have a voice chat in which 30+ people, which creates a mess.