WebRTC.MediaHandler#createOfferOrAnswer: promisify onSetLocalDescriptionSuccess
WebRTC.MediaHandler#createOfferOrAnswer: promisify onSetLocalDescriptionSuccess

Escaux/SIP.js,joseph-onsip/SIP.js,onsip/SIP.js,josephfrazier/SIP.js,onsip/SIP.js,ronlobo/SIP.js,markandrus/SIP.js