Typo. update 'ua_connected', 'ua_disconnected' events names by 'connected', 'disconnected'
Typo. update 'ua_connected', 'ua_disconnected' events names by 'connected', 'disconnected'

CodeYellowBV/JsSIP,onsip/SIP.js,markandrus/SIP.js,dpocock/JsSIP,AaronZhangL/JsSIP,rusekr/JsSIP,ronlobo/SIP.js,onsip/SIP.js,Escaux/SIP.js,tqcenglish/JsSIP,Voiceworks/SIP.js,joseph-onsip/SIP.js,josephfrazier/SIP.js,DrumTechnologiesLtd/JsSIP,vconsult/JsSIP,voxbone/JsSIP