Fix -> Webrtc -> IOS -> safari -> audio not working

1 - I have working code for webrtc video call between 2 users. 2 - code works on desktop 3 - code works on mobile safari (video only) (can't get sound to work) 4 - check attached code 5 - review and tell me if you know solution or what needs to be changed. 6 - express app. [login to view URL] BIDS OVER $50 WON'T BE HIRED. EXPLAIN JOB TO ME IN YOUR BID OR I WILL IGNORE YOU.