How can we make multiple conference calls from Diferents sip at same time

I am trying to build an application(desktop or any application you can suggest) where I have to make conference rooms by fetching numbers from a list and making a conference for each row, in each row I have two numbers of which I want to make a conference.

First : create conference context


Second : create invite function, when this function triggered system will make callout to meeting attendees and connect them to conference (use callout file )

Context: myconference

you can call invite function via click invite button, or schedule it via bash cron.

Desktop or web based app is frontend, both same function , you should choose what you want.