https://github.com/GEDYSIntraWare/cordova-plugin-call-directory/blob/f15c280135c6b1e8f0150b827905319580274504/src/calldirectoryextension/CallDirectoryHandler.swift#L204 https://developer.apple.com/documentation/callkit/cxerrorcodecalldirectorymanagererror?language=objc
