[英]JAIN SIP returns 415
我正在嘗試使用JAIN SIP發起呼叫。 嘗試執行代碼時,我收到代碼415-不支持的媒體類型的響應。
我正在從我的IP地址(使用端口5061)呼叫另一個SIP地址。
我是否缺少標題? 還是有錯的?
這是設置sip堆棧和sip提供程序的構造函數:
public SipLayer(String username, String ip, int port) throws PeerUnavailableException,
TransportNotSupportedException, InvalidArgumentException, ObjectInUseException, TooManyListenersException {
sipFactory = SipFactory.getInstance();
sipFactory.setPathName("gov.nist");
Properties properties = new Properties();
properties.setProperty("javax.sip.STACK_NAME", "SipInitiator");
properties.setProperty("javax.sip.IP_ADDRESS", ip);
sipStack = sipFactory.createSipStack(properties);
headerFactory = sipFactory.createHeaderFactory();
addressFactory = sipFactory.createAddressFactory();
messageFactory = sipFactory.createMessageFactory();
ListeningPoint udp = sipStack.createListeningPoint(ip, port, "udp");
sipProvider = sipStack.createSipProvider(udp);
sipProvider.addSipListener(this);
}
這是使用工廠創建請求並發送請求的函數:
public void sendMessage(String to) throws ParseException, InvalidArgumentException, SipException {
SipURI from = addressFactory.createSipURI(getUsername(), getHost() + ":" + getPort());
Address fromNameAddress = addressFactory.createAddress(from);
fromNameAddress.setDisplayName(getUsername());
FromHeader fromHeader = headerFactory.createFromHeader(fromNameAddress, "sipinitiator");
String username = to.substring(to.indexOf(":") + 1, to.indexOf("@"));
String address = to.substring(to.indexOf("@") + 1);
SipURI toAddress = addressFactory.createSipURI(username, address);
Address toNameAddress = addressFactory.createAddress(toAddress);
toNameAddress.setDisplayName(username);
ToHeader toHeader = headerFactory.createToHeader(toNameAddress, null);
SipURI requestURI = addressFactory.createSipURI(username, address);
requestURI.setTransportParam("udp");
ArrayList<ViaHeader> viaHeaders = new ArrayList<ViaHeader>();
ViaHeader viaHeader = headerFactory.createViaHeader(getHost(), getPort(), "udp", "branch1");
viaHeaders.add(viaHeader);
CallIdHeader callIdHeader = sipProvider.getNewCallId();
CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L, Request.MESSAGE);
MaxForwardsHeader maxForwards = headerFactory.createMaxForwardsHeader(70);
Request request = messageFactory.createRequest(requestURI, Request.MESSAGE, callIdHeader, cSeqHeader,
fromHeader, toHeader, viaHeaders, maxForwards);
SipURI contactURI = addressFactory.createSipURI(getUsername(), getHost());
contactURI.setPort(getPort());
Address contactAddress = addressFactory.createAddress(contactURI);
contactAddress.setDisplayName(getUsername());
ContactHeader contactHeader = headerFactory.createContactHeader(contactAddress);
request.addHeader(contactHeader);
sipProvider.sendRequest(request);
}
(我也有SipListener
函數的實現)
您缺少協商媒體設置的SDP。 415錯誤表示遠程端需要您提供有效的SDP,否則將無法正常工作。 看一下這個示例,如果您尚未准備好RTP堆棧,如何提供偽造的媒體設置https://github.com/usnistgov/jsip/blob/master/src/examples/simplecallsetup/Shootist.java#L348
如果您需要音頻/媒體來工作,則最終希望使用某種可以為您提供適當有效SDP的媒體堆棧。
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