Hi @Amerika360 your question was answered live by Ben Pintilie during our AMA webinar last week, skip to 52:00 in the recording.

For Internal Attendees

1. Admin portal 
2. Make sure that the name is correct. 
3. Use RC apps or web app for internal

For external 

• Log out of the meeting and log back in changing their name to the correct one 

Currently as default, host are unable to change the name of the attendees inside of RCV

Please submit a feature request at https://ideas.ringcentral.com/