Which one is better Jitsi server or own server for large number of audio-video calling?

I want to create an application with Jitsi. Where 10 thousand calls will be exchanged at the same time. Can I create an audio-video calling system using Jitsi server or manage my own server? Which one will be better for buffering? If I have to manage my own server then what server configuration do I need? Help plz.

you will need several dozen of servers having each 10 Gbits/s bandwidth. You will need advanced devops people to manage them. Do not expect anyone to provide you this kind of service for free.

Thank you for your reply. But it is not enough on my question.