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processResponse：

@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);
    }
}

我已成功将该帐户注册到服务器，但是当它开始发送INVITE请求时，没有返回任何响应。

下面是我得到的回复（包括REGISTER响应），最后你会看到我的传出INVITE请求没有返回任何回复。

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

正如您所看到的，它在发送INVITE请求后才停止。

提前谢谢你，

亚当。

更多信息：

我尝试过user2932861的建议没有运气。我尝试过使用我的公共IP地址，但它仍然停留在INVITE请求中。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地址被删除。

提前谢谢！

事实上，它根本没有完全返回NO响应，经过一段时间沉默（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

事务超时对应sip超时，应该是32秒。你得到这个408答案，因为你没有得到答案。这是由堆栈本身生成的自动答案，而不是远程方的答案。

您是否检查了防火墙设置？如果您的操作系统防火墙没有问题，您是否检查了家庭网关？

REGISTER和INVITE请求是否发送到同一个IP地址？您可以使用wireshark进行查询。

yohann

Answer 2

我对你的困境的猜测：

您的联系人标题显示私人地址。尝试在此处使用可公共路由的地址。（您可以使用STUN来发现您的公共地址或其他方式。）如果您要通过B2BUA（AKA会话边界控制器），它会为您重写这些。 SIP中的防火墙和NAT遍历并非易事。

此外，您的INVITE中有内容长度，但您有内容吗？您是否忘记设置SDP内容？

Answer 3

为什么不尝试使用SIP Servlets https://code.google.com/p/sipservlets/这样的更高级别的框架，让您专注于核心业务逻辑？您甚至可以尝试使用Amazon AMI https://aws.amazon.com/marketplace/pp/B00G9G94JW/ref=srh_res_product_title?ie=UTF8&sr=0-3&qid=1383128640630#support

Java - JAIN SIP INVITE不返回响应

3 个答案: