问Android Jain Sip - Sip注册？

EN

 public void init(TextView tv) throws Exception {
    SipFactory sipFactory = null;
    sipStack = null;
    sipFactory = SipFactory.getInstance();
    sipFactory.setPathName("gov.nist");
    Properties properties = new Properties();
    properties.setProperty("javax.sip.OUTBOUND_PROXY", getLocalIpAddress()+":8002" + "/"
            + ListeningPoint.UDP);
    properties.setProperty("javax.sip.STACK_NAME", "Sip Test");
    // Create SipStack object
    sipStack = sipFactory.createSipStack(properties);
    tv.setText("sipStack = " + sipStack);
    headerFactory = sipFactory.createHeaderFactory();
    addressFactory = sipFactory.createAddressFactory();
    messageFactory = sipFactory.createMessageFactory();
    lp = sipStack.createListeningPoint(getLocalIpAddress(),
            8002, ListeningPoint.UDP);


    sipProvider = sipStack.createSipProvider(lp);
    sipOnOffFlag = true;
    tv.append("\n jain sip stack started on " + getLocalIpAddress() + ":" + myPort + "/" + ListeningPoint.UDP);
    sipProvider.addSipListener(this);   


    String fromName = "019078020";
    String fromSipAddress = "216.234.148.28";
    String fromDisplayName = "Donal";

    String toSipAddress = "216.234.148.28";
    String toUser = "16784732970";
    String toDisplayName = "Server";

    // create >From Header
    SipURI fromAddress = addressFactory.createSipURI(fromName,
            getLocalIpAddress());

    Address fromNameAddress = addressFactory.createAddress(fromAddress);
    fromNameAddress.setDisplayName(fromDisplayName);
    FromHeader fromHeader = headerFactory.createFromHeader(
            fromNameAddress, null);

    // 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 = addressFactory.createSipURI(toUser,
            "216.234.148.28");

    // Create ViaHeaders

    List<ViaHeader> viaHeaders = new ArrayList<ViaHeader>();
    String ipAddress = lp.getIPAddress();
    ViaHeader viaHeader = headerFactory.createViaHeader(ipAddress,
            lp.getPort(),
            lp.getTransport(), 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.REGISTER);

    // Create a new MaxForwardsHeader
    MaxForwardsHeader maxForwards = headerFactory
            .createMaxForwardsHeader(70);

    // Create the request.
    Request request = messageFactory.createRequest(requestURI,
            Request.REGISTER, callIdHeader, cSeqHeader, fromHeader,
            toHeader, viaHeaders, maxForwards);
    // Create contact headers

    SipURI contactUrl = addressFactory.createSipURI(fromName, getLocalIpAddress());
    contactUrl.setPort(8002);
    contactUrl.setLrParam();

    // Create the contact name address.
    SipURI contactURI = addressFactory.createSipURI(fromName, getLocalIpAddress());
    contactURI.setPort(sipProvider.getListeningPoint(lp.getTransport())
            .getPort());

    Address contactAddress = addressFactory.createAddress(contactURI);

    // Add the contact address.
    contactAddress.setDisplayName(fromName);

    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("Expires",
        "0");
    request.addHeader(extensionHeader);


    Log.d("SIP", "" + request.toString());
    // Create the client transaction.
    registerTid = sipProvider.getNewClientTransaction(request);

    // send the request out.
    registerTid.sendRequest();

    dialog = registerTid.getDialog();
}