parseExt static method
Parse SIP uri and return extension
Implementation
static String parseExt(String uri) {
//uri format: "displName" <sip:ext@domain:port>
final int startIndex = uri.indexOf(':');
if(startIndex == -1) return "";
final int endIndex = uri.indexOf('@', startIndex + 1);
return (endIndex == -1) ? "" : uri.substring(startIndex+1, endIndex);
}