How to use

getParameterNames

method

in

javax.sip.header.FromHeader

sipServletRequest.getSipSession().setCseq(((CSeqHeader)request.getHeader(CSeqHeader.NAME)).getSeqNumber());
final Map<String, String> fromParameters = new HashMap<String, String>();
final Iterator<String> fromParameterNames = fromHeader.getParameterNames();
while (fromParameterNames.hasNext()) {
  String parameterName = (String) fromParameterNames.next();