WebRTC & JSSIP Developer Needed to Solve iOS Audio Issue

We need a web developer with experience in webRTC and JSSIP. You must have knowledge of limitations of playing WebRTC audio in Safari iOS and own a real iOS device (emulators / simulators do not have the problem). Our website audio that uses WebRTC & JSSIP will not play on an iOS device in Safari (mine is a iPhone XS Max), there are no problems on a desktop with any browser and it does play on older Android Phones ok with Chrome but not newer Android Phones for some reason. This is not a App but a website. Thank you :)