Big Blue Button Customization

We have existing Social and Event App for our various clients. We have three type of Apps iOS (using SWIFT), Android (using Java), Web (using C# & jQuery Mobile). We have multiple clients and mostly each client’s have their own App. We are planning to include virtual communication into our existing Apps. In Event App, Member App & Social App we need an ability to create / schedule Meeting and/or Webinar. These meetings will be either setup automatically using Application API or manually using our Web Application. Once these meetings are setup by host or application, able to add invitees. Meeting URLs will be generated, if it’s protected and needs to generate separate URL for each attendee that will be great. If not, password protection is must to avoid unknown person joining meeting. For Meeting everyone will be able to see each other and speak. Meeting needs to have ability to share screen, join with video or audio (using dial in number or computer audio), share whiteboard, meeting chat (group or one-one). Application should work with low banding connection. Web meeting will have limitation of number of attendees may be 20 – 50. Whereas Webinar can cater more that 500 attendees but here speakers will be broadcasting. In Webinar there needs to be an ability to upload presentation, share screen, mute / unmute attendees, share poll, make someone presenter, breakout rooms. If possible, there should be different URLs for host, presenters and attendees. For Web Meeting & Webinar we do not want to use any third party. We will like to use Freeware like BigBlueButton as base system and customize as per our needs. For integration our developer will work along with you.