private ArrayList getLocalViaHeaders() throws IOException {
/*
* We can't keep a cached copy because the callers
* of this method change the viaHeaders. In particular
* a branch may be added which causes INVITES to fail.
*/
if (viaHeaders != null) {
return viaHeaders;
}
ListeningPoint lp = sipProvider.getListeningPoint();
viaHeaders = new ArrayList();
try {
String addr = lp.getIPAddress();
ViaHeader viaHeader =
headerFactory.createViaHeader(addr, lp.getPort(), lp.getTransport(), null);
viaHeader.setRPort();
viaHeaders.add(viaHeader);
return viaHeaders;
} catch (ParseException e) {
throw new IOException(
"A ParseException occurred while creating Via Headers! " + e.getMessage());
} catch (InvalidArgumentException e) {
throw new IOException(
"Unable to create a via header for port " + lp.getPort() + " " + e.getMessage());
}
}
public ClientTransaction call(SipURI destination) {
try {
String fromName = "B2BUA";
String fromSipAddress = "here.com";
String fromDisplayName = "B2BUA";
String toSipAddress = "there.com";
String toUser = "******";
String toDisplayName = "Target";
// create >From Header
SipURI fromAddress = addressFactory.createSipURI(fromName, fromSipAddress);
Address fromNameAddress = addressFactory.createAddress(fromAddress);
fromNameAddress.setDisplayName(fromDisplayName);
FromHeader fromHeader =
headerFactory.createFromHeader(
fromNameAddress, new Long(counter.getAndIncrement()).toString());
// create To Header
SipURI toAddress = addressFactory.createSipURI(toUser, toSipAddress);
Address toNameAddress = addressFactory.createAddress(toAddress);
toNameAddress.setDisplayName(toDisplayName);
ToHeader toHeader = headerFactory.createToHeader(toNameAddress, null);
// create Request URI
SipURI requestURI = destination;
// Create ViaHeaders
ArrayList viaHeaders = new ArrayList();
String ipAddress = listeningPoint.getIPAddress();
ViaHeader viaHeader =
headerFactory.createViaHeader(
ipAddress, sipProvider.getListeningPoint(transport).getPort(), transport, null);
// add via headers
viaHeaders.add(viaHeader);
// Create ContentTypeHeader
ContentTypeHeader contentTypeHeader =
headerFactory.createContentTypeHeader("application", "sdp");
// Create a new CallId header
CallIdHeader callIdHeader = sipProvider.getNewCallId();
// Create a new Cseq header
CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L, Request.INVITE);
// Create a new MaxForwardsHeader
MaxForwardsHeader maxForwards = headerFactory.createMaxForwardsHeader(70);
// Create the request.
Request request =
messageFactory.createRequest(
requestURI,
Request.INVITE,
callIdHeader,
cSeqHeader,
fromHeader,
toHeader,
viaHeaders,
maxForwards);
// Create contact headers
String host = "127.0.0.1";
SipURI contactUrl = addressFactory.createSipURI(fromName, host);
contactUrl.setPort(listeningPoint.getPort());
contactUrl.setLrParam();
// Create the contact name address.
SipURI contactURI = addressFactory.createSipURI(fromName, host);
contactURI.setPort(sipProvider.getListeningPoint(transport).getPort());
Address contactAddress = addressFactory.createAddress(contactURI);
// Add the contact address.
contactAddress.setDisplayName(fromName);
ContactHeader contactHeader = headerFactory.createContactHeader(contactAddress);
request.addHeader(contactHeader);
// You can add extension headers of your own making
// to the outgoing SIP request.
// Add the extension header.
Header extensionHeader = headerFactory.createHeader("My-Header", "my header value");
request.addHeader(extensionHeader);
String sdpData =
"v=0\r\n"
+ "o=4855 13760799956958020 13760799956958020"
+ " IN IP4 129.6.55.78\r\n"
+ "s=mysession session\r\n"
+ "p=+46 8 52018010\r\n"
+ "c=IN IP4 129.6.55.78\r\n"
+ "t=0 0\r\n"
+ "m=audio 6022 RTP/AVP 0 4 18\r\n"
+ "a=rtpmap:0 PCMU/8000\r\n"
+ "a=rtpmap:4 G723/8000\r\n"
+ "a=rtpmap:18 G729A/8000\r\n"
+ "a=ptime:20\r\n";
byte[] contents = sdpData.getBytes();
request.setContent(contents, contentTypeHeader);
// You can add as many extension headers as you
// want.
extensionHeader = headerFactory.createHeader("My-Other-Header", "my new header value ");
request.addHeader(extensionHeader);
Header callInfoHeader = headerFactory.createHeader("Call-Info", "<http://www.antd.nist.gov>");
request.addHeader(callInfoHeader);
// Create the client transaction.
ClientTransaction inviteTid = sipProvider.getNewClientTransaction(request);
System.out.println("inviteTid = " + inviteTid);
// send the request out.
inviteTid.sendRequest();
return inviteTid;
} catch (Exception ex) {
System.out.println(ex.getMessage());
ex.printStackTrace();
}
return null;
}