dptel

> telephonyService.endCall() is no lnger available in android 29 API+, as alternative, do we have anything rather than force user to chose the app as default dialing app? There isn't...

I don't know if my code would resolve the issues but #7 might, in any case please let me know if possible so I may work on a fix.

I have tried to update the code and resolve some of these issues. Please take a look at #7