Hi, I am trying to make the best use of an old EX90 for good instead of dumping it into landfills. I have a free WebEx basic plan and a free Zoom Basic plan. I was wondering how to configure the EX90 for WebEx/Zoom video conference. I was prompt to enter a WebEx Video phone number and activation code but I don't know how I can get these things. I don't want to pay any subscription but just use it to attend Zoom, Team, WebEx, etc. Thank you in advance.