Java - JAIN SIP INVITE 不返回响应

Question

public void call(Response response) {
    try {
        cseq++;

        current_process = cseq + " INVITE";
        ArrayList viaHeaders = new ArrayList();
        ViaHeader viaHeader = this.headerFactory.createViaHeader(this.ip,
                5060, "udp", null);
        viaHeaders.add(viaHeader);
        // The "Max-Forwards" header.
        MaxForwardsHeader maxForwardsHeader = this.headerFactory
                .createMaxForwardsHeader(70);
        // The "Call-Id" header.
        CallIdHeader callIdHeader = this.sipProvider.getNewCallId();
        // The "CSeq" header.
        CSeqHeader cSeqHeader = this.headerFactory.createCSeqHeader(cseq,
                "INVITE");

        Address fromAddress = addressFactory.createAddress("sip:"
                + username + '@' + server);

        Address toAddress = addressFactory.createAddress("sip:"+this.toPrefix+this.toNumber+'@'+this.toUri);

        FromHeader fromHeader = this.headerFactory.createFromHeader(
                fromAddress, String.valueOf(this.tag));
        // The "To" header.
        ToHeader toHeader = this.headerFactory.createToHeader(toAddress,
                null);

        ContentLengthHeader contentLength = this.headerFactory.createContentLengthHeader(300);
        ContentTypeHeader contentType = this.headerFactory.createContentTypeHeader("application", "sdp");

        String sdpData = "v=0\n" + 
                "o=user1 392867480 292042336 IN IP4 192.168.10.31\n" + 
                "s=-\n" + 
                "c=IN IP4 192.168.10.31\n" + 
                "t=0 0\n" + 
                "m=audio 8000 RTP/AVP 0 8 101\n" + 
                "a=rtpmap:0 PCMU/8000\n" + 
                "a=rtpmap:8 PCMA/8000\n" + 
                "a=rtpmap:101 telephone-event/8000\n" + 
                "a=sendrecv";
         byte[] contents = sdpData.getBytes();
        // this.contactHeader = this.headerFactory
        // .createContactHeader(contactAddress);

        request = this.messageFactory.createRequest("sip:"+this.toPrefix+this.toNumber+'@'
                + this.toUri + " SIP/2.0\r\n\r\n");
        request.addHeader(viaHeader);
        request.addHeader(maxForwardsHeader);
        request.addHeader(toHeader);
        request.addHeader(fromHeader);
        request.addHeader(callIdHeader);
        request.addHeader(cSeqHeader);
        request.addHeader(contactHeader);
        request.addHeader(contentLength);
        request.addHeader(contentType);
        if (response != null) {
                            retry = true;
            System.out.println("DEBUG: Response: "+response);
        }
        inviteTid = sipProvider.getNewClientTransaction(request);
        // send the request out.
        inviteTid.sendRequest();
        this.dialog = inviteTid.getDialog();
        // Send the request statelessly through the SIP provider.
        // this.sipProvider.sendRequest(request);

        // Display the message in the text area.
        logger.debug("Request sent:\n" + request.toString() + "\n\n");
    } catch (Exception e) {
        // If an error occurred, display the error.
        e.printStackTrace();
        logger.debug("Request sent failed: " + e.getMessage() + "\n");
    }
}

这是过程响应:

@Override
public void processResponse(ResponseEvent responseEvent) {
    System.out.println(responseEvent.getResponse());
    int statusCode = responseEvent.getResponse().getStatusCode();
            if (statusCode > 400 && statusCode < 410) {
    if(statusCode == 401 && current_process.contains("REGISTER")) {
        register(responseEvent.getResponse());
    }
    else if(statusCode == 401 && current_process.contains("INVITE")) {
        System.out.println("Invite 401");
    }
    else if(statusCode == 200) {
        System.out.println("Registered");
        call(null);
    }       
    else {
        System.out.println("Other code: "+ statusCode);
    }
}

我已经成功注册到服务器，但是当它开始INVITE请求时，没有任何响应返回。

下面是我得到的响应(包括 REGISTER 响应)，最后你会看到我发出的 INVITE 请求没有返回任何响应。

DEBUG - Request sent:
REGISTER sip:sip.dialnow.com SIP/2.0
Via: SIP/2.0/UDP 192.168.10.31:5060;branch=z9hG4bK-343133-c591d8f797a179ed25a2114311df1854
Max-Forwards: 70
To: <sip:Frax01@sip.dialnow.com>
From: <sip:Frax01@sip.dialnow.com>;tag=706572717
Call-ID: 6e49a1b2631c4b107199a8b7d9c5ee52@192.168.10.31
CSeq: 1 REGISTER
Contact: <sip:Frax01@192.168.10.31:5060;transport=UDP>
Expires: 120
Content-Length: 0




SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 192.168.10.31:5060;branch=z9hG4bK-343133-c591d8f797a179ed25a2114311df1854
From: <sip:Frax01@sip.dialnow.com>;tag=706572717
To: <sip:Frax01@sip.dialnow.com>
Contact: <sip:77.72.169.129:5060>
Call-ID: 6e49a1b2631c4b107199a8b7d9c5ee52@192.168.10.31
CSeq: 1 REGISTER
Server: (Very nice Sip Registrar/Proxy Server)
Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS,INFO,MESSAGE
WWW-Authenticate: Digest realm="sip.dialnow.com",nonce="2849852658",algorithm=MD5
Content-Length: 0


12d2ad0d764601c0573be88a3d94a2d8
8b3a241c08615fba24fb161a2a344cc9
40810f9cf3d19138dc0875dea15e3970
DEBUG - Request sent:
REGISTER sip:sip.dialnow.com SIP/2.0
Via: SIP/2.0/UDP 192.168.10.31:5060;branch=z9hG4bK-343133-3ccb8a78b8614638665f0af2a998a686
Max-Forwards: 70
To: <sip:Frax01@sip.dialnow.com>
From: <sip:Frax01@sip.dialnow.com>;tag=706572717
Call-ID: 50baef7c3a407e50d4d539a1e35cff41@192.168.10.31
CSeq: 2 REGISTER
Contact: <sip:Frax01@192.168.10.31:5060;transport=UDP>
Expires: 120
Authorization: Digest realm="sip.dialnow.com",nonce="2849852658",username="Frax01",uri="sip:sip.dialnow.com",algorithm=MD5,response="40810f9cf3d19138dc0875dea15e3970"
Content-Length: 0




SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.10.31:5060;branch=z9hG4bK-343133-3ccb8a78b8614638665f0af2a998a686
From: <sip:Frax01@sip.dialnow.com>;tag=706572717
To: <sip:Frax01@sip.dialnow.com>
Contact: <sip:77.72.169.129:5060>
Call-ID: 50baef7c3a407e50d4d539a1e35cff41@192.168.10.31
CSeq: 2 REGISTER
Server: (Very nice Sip Registrar/Proxy Server)
Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS,INFO,MESSAGE
Content-Length: 0


Other code: 100
SIP/2.0 200 Ok
Via: SIP/2.0/UDP 192.168.10.31:5060;branch=z9hG4bK-343133-3ccb8a78b8614638665f0af2a998a686
From: <sip:Frax01@sip.dialnow.com>;tag=706572717
To: <sip:Frax01@sip.dialnow.com>
Contact: <sip:Frax01@192.168.10.31:5060;transport=udp>;expires=120
Call-ID: 50baef7c3a407e50d4d539a1e35cff41@192.168.10.31
CSeq: 2 REGISTER
Server: (Very nice Sip Registrar/Proxy Server)
Allow: ACK,BYE,CANCEL,INVITE,REGISTER,OPTIONS,INFO,MESSAGE
Content-Length: 0


Registered
DEBUG - Request sent:
INVITE sip:6281386725319@dialnow.com SIP/2.0
Via: SIP/2.0/UDP 192.168.10.31:5060;branch=z9hG4bK-343133-e18f3eca8f76bd0a4378a12dd6e7a0d7
Max-Forwards: 70
To: <sip:6281386725319@dialnow.com>
From: <sip:Frax01@sip.dialnow.com>;tag=706572717
Call-ID: 66341e5e43e50e106a7fbf2866c0a1d3@192.168.10.31
CSeq: 3 INVITE
Contact: <sip:Frax01@192.168.10.31:5060;transport=UDP>
Content-Type: application/sdp
Content-Length: 300

如您所见，它在发送 INVITE 请求后就停止了。

提前谢谢你，

亚当。

---

更多信息:

我尝试了 user2932861 的建议，但没有成功。我已经尝试使用我的公共(public) IP 地址，但它仍然停留在 INVITE 请求上。另外，我已经设置了我的SDP内容，下面是我的SDP内容:

        ContentTypeHeader contentType = this.headerFactory.createContentTypeHeader("application", "sdp");

        String sdpData = "v=0\n" + 
                "o=user1 392867480 292042336 IN IP4 *my IP*\n" + 
                "s=-\n" + 
                "c=IN IP4 *my IP*\n" + 
                "t=0 0\n" + 
                "m=audio 8000 RTP/AVP 0 8 101\n" + 
                "a=rtpmap:0 PCMU/8000\n" + 
                "a=rtpmap:8 PCMA/8000\n" + 
                "a=rtpmap:101 telephone-event/8000\n" + 
                "a=sendrecv";
         byte[] contents = sdpData.getBytes();

         request.setContent(contents, contentType);

注意:IP 地址已被审查。

提前致谢!

---

事实上，它并没有完全返回 NO 响应，在沉默一段时间后(没有返回任何东西)，控制台会显示“事务超时”。知道为什么会这样吗？

Answer 1

transaction timeout对应sip timeout，应该是32s。您收到此 408 答复是因为您没有收到答复。这是堆栈本身生成的自动答案，而不是远程方的答案。

您检查过您的防火墙设置了吗？如果您的 OS 防火墙没有问题，您是否检查了您的家庭网关？

REGISTER 和 INVITE 请求是否发送到相同的 IP 地址？您可以使用 wireshark 检查.

约翰