java - SIP ACK 对话框为空

我正在使用 JAIN SIP 在 java 中创建 SIP 客户端。

我已经成功注册并发送 INVITE，但是当将 ACK 发送回服务器时，我收到错误消息:

Cannot Create ACK - no remote Target

我检查了Dialog的值，它是null

在processResponce()中，我得到的值也是null

this.dialog = responseEvent.getClientTransaction().getDialog();

我将它传递给 ack(responseEvent.getResponse(),dialog)

request =this.dialog.createAck(((CSeqHeader)response.getHeader("CSeq")).getSeqNumber());
dialog.sendAck(request);

也在 Register() 和 Call() 中

this.dialog = inviteTid.getDialog();

这里dialog的值也是null

我也尝试过

dialog = sipProvider.getNewDialog(inviteID);

但它给出的错误为

AUTOMATIC_DIALOG_SUPPORT is on

我是否必须初始化对话框或进行更多调用来设置其值？

如何实现 ACK？

REGISTER sip:SipIP SIP/2.0
Call-ID: b83eb80b195f6802c283c5927fb6415a@localHost
CSeq: 1 REGISTER
From: <sip:username@SipIP>;tag=1626086046
To: <sip:username@SipIP>
Via: SIP/2.0/UDP localHost:52216;rport;branch=z9hG4bK-363935-33f876b2e3720a123b62c68fc23cfa68
Max-Forwards: 70
Contact: <sip:username@localHost:52216;transport=UDP>
Content-Length: 0

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP localHost:52216;branch=z9hG4bK-363935-33f876b2e3720a123b62c68fc23cfa68;received=localHost;rport=52216
From: <sip:username@SipIP>;tag=1626086046
To: <sip:username@SipIP>;tag=as3c3695d2
Call-ID: b83eb80b195f6802c283c5927fb6415a@localHost
CSeq: 1 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="65dfb3ad"
Content-Length: 0


REGISTER sip:SipIP SIP/2.0
Call-ID: b83eb80b195f6802c283c5927fb6415a@localHost
CSeq: 2 REGISTER
From: <sip:username@SipIP>;tag=1626086046
To: <sip:username@SipIP>
Via: SIP/2.0/UDP localHost:52216;rport;branch=z9hG4bK-363935-150b07c1e9409d05aafaa7652859024a
Max-Forwards: 70
Contact: <sip:username@localHost:52216;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="65dfb3ad",uri="sip:SipIP",algorithm=MD5,response="b34005eb8ded9180fb5f5667f1ee842d"
Content-Length: 0


---------------------------Registered200--------------------

SIP/2.0 200 OK
Via: SIP/2.0/UDP localHost:52216;branch=z9hG4bK-363935-    150b07c1e9409d05aafaa7652859024a;received=localHost;rport=52216
From: <sip:username@SipIP>;tag=1626086046
To: <sip:username@SipIP>;tag=as3c3695d2
Call-ID: b83eb80b195f6802c283c5927fb6415a@localHost
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Expires: 240
Contact: <sip:username@localHost:52216;transport=UDP>;expires=240
Date: Wed, 22 Apr 2015 23:52:44 GMT
Content-Length: 0


Dialog created: gov.nist.javax.sip.stack.SIPDialog@d15ad713
Dialog: gov.nist.javax.sip.stack.SIPDialog@d15ad713

INVITE sip:SipIP SIP/2.0
Call-ID: b83eb80b195f6802c283c5927fb6415a@localHost
CSeq: 3 INVITE
From: <sip:username@SipIP>;tag=1626086046
To: <sip:160@SipIP>
Via: SIP/2.0/UDP localHost:52216;rport;branch=z9hG4bK-363935-3d3a34f99499b96c6c1f709065ed4c85
Max-Forwards: 70
Content-Type: application/sdp
Contact: <sip:username@localHost:52216;transport=UDP>
Content-Length: 300

v=0
o=fraunhofer 392867480 292042336 IN IP4 localHost
s=-
c=IN IP4 localHost
t=0 0
m=audio 8000 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv
------------------Invite 401--------------------

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP localHost:52216;branch=z9hG4bK-363935-        3d3a34f99499b96c6c1f709065ed4c85;received=localHost;rport=52216
From: <sip:username@SipIP>;tag=1626086046
To: <sip:160@SipIP>;tag=as3c3695d2
Call-ID: b83eb80b195f6802c283c5927fb6415a@localHost
CSeq: 3 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="4c1d89c8"
Content-Length: 0


-------------------------Dialog:gov.nist.javax.sip.stack.SIPDialog@d15ad713
Dialog get Remote Target: null
javax.sip.SipException: Cannot create ACK - no remote Target!
at gov.nist.javax.sip.stack.SIPDialog.createAck(SIPDialog.java:3021)
at test.ack(test.java:507)
at test.processResponse(test.java:214)
at gov.nist.javax.sip.EventScanner.deliverEvent(EventScanner.java:296)
at gov.nist.javax.sip.EventScanner.run(EventScanner.java:519)
at java.lang.Thread.run(Thread.java:745)

具有更改的 Call-ID 的新响应

REGISTER sip:SIPIP SIP/2.0
Call-ID: 01bb8e9788fc251f8d44f2c709542fa5@LOCALIP
CSeq: 1 REGISTER
From: <sip:username@SIPIP>;tag=2125326583
To: <sip:username@SIPIP>
Via: SIP/2.0/UDP LOCALIP:52216;rport;branch=z9hG4bK-3833-142aff6ad1e359c2b618eba23fa04453
Max-Forwards: 70
Contact: <sip:username@LOCALIP:52216;transport=UDP>
Content-Length: 0

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP LOCALIP:52216;branch=z9hG4bK-3833-142aff6ad1e359c2b618eba23fa04453;received=LOCALIP;rport=52216
From: <sip:username@SIPIP>;tag=2125326583
To: <sip:username@SIPIP>;tag=as2e8e5e8d
Call-ID: 01bb8e9788fc251f8d44f2c709542fa5@LOCALIP
CSeq: 1 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="6223df47"
Content-Length: 0


REGISTER sip:SIPIP SIP/2.0
Call-ID: 01bb8e9788fc251f8d44f2c709542fa5@LOCALIP
CSeq: 2 REGISTER
From: <sip:username@SIPIP>;tag=2125326583
To: <sip:username@SIPIP>
Via: SIP/2.0/UDP LOCALIP:52216;rport;branch=z9hG4bK-3833-36d48a4c062bbb9e83db9a12f36414b3
Max-Forwards: 70
Contact: <sip:username@LOCALIP:52216;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="6223df47",uri="sip:SIPIP",algorithm=MD5,response="d4ac55bbc8dacb87f66cf9f4041af03c"
Content-Length: 0


---------------------------Registered200--------------------

SIP/2.0 200 OK
Via: SIP/2.0/UDP LOCALIP:52216;branch=z9hG4bK-3833-36d48a4c062bbb9e83db9a12f36414b3;received=LOCALIP;rport=52216
From: <sip:username@SIPIP>;tag=2125326583
To: <sip:username@SIPIP>;tag=as2e8e5e8d
Call-ID: 01bb8e9788fc251f8d44f2c709542fa5@LOCALIP
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Expires: 240
Contact: <sip:username@LOCALIP:52216;transport=UDP>;expires=240
Date: Thu, 23 Apr 2015 08:38:28 GMT
Content-Length: 0


Dialog: createdgov.nist.javax.sip.stack.SIPDialog@977c31a5
INVITE sip:SIPIP SIP/2.0
Call-ID: a86cc90138ad50d9716664b7925cb205@LOCALIP
CSeq: 3 INVITE
From: <sip:username@SIPIP>;tag=2125326583
To: <sip:160@SIPIP>
Via: SIP/2.0/UDP LOCALIP:52216;rport;branch=z9hG4bK-            3833-0db5ef4b4e463aee4fa22c3379915d5e
Max-Forwards: 70
Content-Type: application/sdp
Contact: <sip:username@LOCALIP:52216;transport=UDP>
Content-Length: 300

v=0
o=fraunhofer 392867480 292042336 IN IP4 LOCALIP
s=-
c=IN IP4 LOCALIP
t=0 0
m=audio 8000 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv
------------------Invite 401--------------------

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP LOCALIP:52216;branch=z9hG4bK-   3833-0db5ef4b4e463aee4fa22c3379915d5e;received=LOCALIP;rport=52216
From: <sip:username@SIPIP>;tag=2125326583
To: <sip:160@SIPIP>;tag=as54bd3315
Call-ID: a86cc90138ad50d9716664b7925cb205@LOCALIP
CSeq: 3 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="1e960014"
Content-Length: 0

调用(响应)

enterpublic void call(Response response) {
    try {
        cseq++;
        String callee = "160";
        current_process = cseq + "INVITE";
        ArrayList viaHeaders = new ArrayList();
        ViaHeader viaHeader = headerFactory.createViaHeader(localIP,
                rport, "udp", null);
        viaHeader.setRPort();
        viaHeaders.add(viaHeader);
        // The "Max-Forwards" header.
        MaxForwardsHeader maxForwardsHeader = headerFactory.createMaxForwardsHeader(70);
        // The "Call-Id" header.
        CallIdHeader callIdHeader = this.sipProvider.getNewCallId();;
        // The "CSeq" header.
        CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(cseq, "INVITE");

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

        Address toAddress = addressFactory.createAddress("sip:"+callee+'@'+sipIP);

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

        ContentLengthHeader contentLength = headerFactory.createContentLengthHeader(211);
        ContentTypeHeader contentType = headerFactory.createContentTypeHeader("application", "sdp");

        String sdpData = "v=0\n" + 
                "o=user1 795808818 480847547 IN IP4 10.99.70.106\n" + 
                "s=-\n" + 
                "c=IN IP4 10.99.70.106\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);

         URI requestURI = addressFactory.createURI("sip:"
                +callee+ '@'+ server); 

        request = this.messageFactory.createRequest(requestURI, Request.INVITE, 
                callIdHeader,cSeqHeader, fromHeader, toHeader, viaHeaders, maxForwardsHeader, contentType, contents);

        request.addHeader(contactHeader);
        request.addHeader(contentLength);
        test listener =this;
        if (response != null) {
            boolean retry = true;
            System.out.println("DEBUG: Response: "+response);
        }
        listener.inviteTid = sipProvider.getNewClientTransaction(request);


        if(dialog!= null && logger.isDebugEnabled()){
            logger.debug("Obtain dialog from ClientTransaction: automatic dialog support on");
//              System.out.println("Obtain dialog from ClientTransaction: automatic dialog support on");
        }
        if(dialog == null){
            //Automatic Dialog support turned off

            dialog = sipProvider.getNewDialog(inviteTid);

        }
        System.out.println("Dialog: created" + dialog);
        // send the request out.
        listener.inviteTid.sendRequest();

        this.dialog = this.inviteTid.getDialog();
 //         System.out.println("Dialog:" + dialog);

        // Send the request statelessly through the SIP provider.
        // this.sipProvider.sendRequest(request);
        System.out.println(request.toString());
        // Display the message in the text area.
        logger.debug("Request sent:\n" + "\n\n");
    } catch (Exception e) {
        // If an error occurred, display the error.
        e.printStackTrace();
        logger.debug("Request sent failed: " + e.getMessage() + "\n");
    }
}

无法创建 ACK 的日志 - 无远程目标

enter REGISTER sip:localIP SIP/2.0
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="9da8fbf9abfeadaafbaca8afa8a4f9a9fcfcf8fcfff9fbffa4f8aeadabfef9acafddacadb3a4a4b3acaeabb3acaeab" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 1 REGISTER
From: <sip:username@localIP>;tag=1825098223
To: <sip:username@localIP>
Via: SIP/2.0/UDP 10.99.136.136:52216;rport;branch=z9hG4bK-363735-0dd0a58b853bb23070f706fc3b058461
Max-Forwards: 70
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="0f7a7c6a7d616e626a4f3e3f213636213e3c39213e3c39" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>
Content-Length: 0


-----------StatusCode:401----------------------------
-----------currentREsponse:Unauthorized----------------------------
SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-    363735-0dd0a58b853bb23070f706fc3b058461;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:username@localIP>;tag=as78941717
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="87b2e1e3b1e4b7b0e1b6b2b5b2bee3b3e6e6e2e6e5e3e1e5bee2b4b7b1e4e3b6b5c7b6b7a9bebea9b6b4b1a9b6b4b1" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 1 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="49a39764"
Content-Length: 0


REGISTER sip:localIP SIP/2.0
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="7a4f1c1e4c194a4d1c4b4f484f431e4e1b1b1f1b181e1c18431f494a4c191e4b483a4b4a544343544b494c544b494c" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 2 REGISTER
From: <sip:username@localIP>;tag=1825098223
To: <sip:username@localIP>
Via: SIP/2.0/UDP 10.99.136.136:52216;rport;branch=z9hG4bK-363735-0a214e6d4a1bc50c0faf1657cf109e31
Max-Forwards: 70
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ccb9bfa9bea2ada1a98cfdfce2f5f5e2fdfffae2fdfffa" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="49a39764",uri="sip:localIP",algorithm=MD5,response="1af91bd8169339ec8c77decfab59fd21"
Content-Length: 0


-----------StatusCode:200----------------------------
-----------currentREsponse:OK----------------------------
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-    363735-0a214e6d4a1bc50c0faf1657cf109e31;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:username@localIP>;tag=as78941717
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ac99cac89acf9c9bca9d999e9995c898cdcdc9cdcec8cace95c99f9c9acfc89d9eec9d9c829595829d9f9a829d9f9a" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Expires: 240
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="60151305120e010d052051504e59594e5153564e515356" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>;expires=240
Date: Fri, 24 Apr 2015 16:58:50 GMT
Content-Length: 0


---------------------------Registered: 200--------------------

SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-0a214e6d4a1bc50c0faf1657cf109e31;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:username@localIP>;tag=as78941717
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a491c2c092c79493c2959196919dc090c5c5c1c5c6c0c2c69dc1979492c7c09596e495948a9d9d8a9597928a959792" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Expires: 240
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="bdc8ced8cfd3dcd0d8fd8c8d938484938c8e8b938c8e8b" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>;expires=240
Date: Fri, 24 Apr 2015 16:58:50 GMT
Content-Length: 0


DEBUG: Response: SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-    363735-0a214e6d4a1bc50c0faf1657cf109e31;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:username@localIP>;tag=as78941717
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="cffaa9abf9acfff8a9fefafdfaf6abfbaeaeaaaeadaba9adf6aafcfff9acabfefd8ffeffe1f6f6e1fefcf9e1fefcf9" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 2 REGISTER
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Expires: 240
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="acd9dfc9dec2cdc1c9ec9d9c829595829d9f9a829d9f9a" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>;expires=240
Date: Fri, 24 Apr 2015 16:58:50 GMT
Content-Length: 0


Dialog: createdgov.nist.javax.sip.stack.SIPDialog@393895ed
INVITE sip:160@localIP SIP/2.0
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ffca999bc99ccfc899cecacdcac69bcb9e9e9a9e9d9b999dc69acccfc99c9bcecdbfcecfd1c6c6d1ceccc9d1ceccc9" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 3 INVITE
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>
Via: SIP/2.0/UDP 10.99.136.136:52216;rport;branch=z9hG4bK-363735-312eacb8db309d6c6794e2eb7adf8b92
Max-Forwards: 70
Content-Type: application/sdp
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1c696f796e727d71795c2d2c322525322d2f2a322d2f2a" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="49a39764",uri="sip:localIP",algorithm=MD5,response="1af91bd8169339ec8c77decfab59fd21"
Content-Length: 211

v=0
o=user1 795808818 480847547 IN IP4 localIP
s=-
c=IN IP4 localIP
t=0 0
m=audio 8000 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv


Request OPTIONSreceived at stackwith server transaction idnull
-----------StatusCode:401----------------------------
-----------currentREsponse:Unauthorized----------------------------
------------------Invite 401--------------------

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-    363735-312eacb8db309d6c6794e2eb7adf8b92;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as4f6f7f78
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="2f1a494b194c1f18491e1a1d1a164b1b4e4e4a4e4d4b494d164a1c1f194c4b1e1d6f1e1f011616011e1c19011e1c19" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 3 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="7e048345"
Content-Length: 0


DEBUG: Response: SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-312eacb8db309d6c6794e2eb7adf8b92;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as4f6f7f78
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="93a6f5f7a5f0a3a4f5a2a6a1a6aaf7a7f2f2f6f2f1f7f5f1aaf6a0a3a5f0f7a2a1d3a2a3bdaaaabda2a0a5bda2a0a5" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 3 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="7e048345"
Content-Length: 0


Dialog: createdgov.nist.javax.sip.stack.SIPDialog@393895ed
INVITE sip:160@localIP SIP/2.0
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="fecb989ac89dcec998cfcbcccbc79aca9f9f9b9f9c9a989cc79bcdcec89d9acfccbecfced0c7c7d0cfcdc8d0cfcdc8" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 4 INVITE
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>
Via: SIP/2.0/UDP 10.99.136.136:52216;rport;branch=z9hG4bK-363735-dae4419c9405bb40dda573fe9c276518
Max-Forwards: 70
Content-Type: application/sdp
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="42373127302c232f270273726c7b7b6c7371746c737174" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="49a39764",uri="sip:localIP",algorithm=MD5,response="1af91bd8169339ec8c77decfab59fd21"
Content-Length: 211

v=0
o=user1 795808818 480847547 IN IP4 localIP
s=-
c=IN IP4 localIP
t=0 0
m=audio 8000 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv
-----------StatusCode:401----------------------------
-----------currentREsponse:Unauthorized----------------------------
------------------Invite 401--------------------

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-1a2fd8de5c389de950ecbb1a3d9a7d3e;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as22472833
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="82b7e4e6b4e1b2b5e4b3b7b0b7bbe6b6e3e3e7e3e0e6e4e0bbe7b1b2b4e1e6b3b0c2b3b2acbbbbacb3b1b4acb3b1b4" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 4 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="599cd63b"
Content-Length: 0


DEBUG: Response: SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-1a2fd8de5c389de950ecbb1a3d9a7d3e;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as22472833
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="2b1e4d4f1d481b1c4d1a1e191e124f1f4a4a4e4a494f4d49124e181b1d484f1a196b1a1b051212051a181d051a181d" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 4 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
WWW-Authenticate: Digest algorithm=MD5,realm="xyz.com",nonce="599cd63b"
Content-Length: 0


Dialog: createdgov.nist.javax.sip.stack.SIPDialog@393895ed
INVITE sip:160@localIP SIP/2.0
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="5f6a393b693c6f68396e6a6d6a663b6b3e3e3a3e3d3b393d663a6c6f693c3b6e6d1f6e6f716666716e6c69716e6c69" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>
Via: SIP/2.0/UDP 10.99.136.136:52216;rport;branch=z9hG4bK-363735-633d808b788771fa1e211672ddc3e903
Max-Forwards: 70
Content-Type: application/sdp
Contact: <sip:<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="6c191f091e020d01092c5d5c425555425d5f5a425d5f5a" rel="noreferrer noopener nofollow">[email protected]</a>:52216;transport=UDP>
Authorization: Digest username="username",realm="xyz.com",nonce="49a39764",uri="sip:localIP",algorithm=MD5,response="1af91bd8169339ec8c77decfab59fd21"
Content-Length: 211

v=0
o=user1 795808818 480847547 IN IP4 localIP
s=-
c=IN IP4 localIP
t=0 0
m=audio 8000 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv
-----------StatusCode:401----------------------------
-----------currentREsponse:Unauthorized----------------------------
-----------StatusCode:100----------------------------
-----------currentREsponse:Trying----------------------------
------------------- Status Code: 100--------------------------
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-a872936256c40065a4b147d4981cc74a;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="645102005207545302555156515d005005050105060002065d01575452070055562455544a5d5d4a5557524a555752" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Contact: <sip:160@localIP:5060>
Content-Length: 0


-----------StatusCode:401----------------------------
-----------currentREsponse:Unauthorized----------------------------


Request OPTIONSreceived at stackwith server transaction idnull
-----------StatusCode:180----------------------------
-----------currentREsponse:Ringing----------------------------

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-a872936256c40065a4b147d4981cc74a;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as78f593d4
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d4e1b2b0e2b7e4e3b2e5e1e6e1edb0e0b5b5b1b5b6b0b2b6edb1e7e4e2b7b0e5e694e5e4faededfae5e7e2fae5e7e2" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Contact: <sip:160@localIP:5060>
Content-Length: 0

-


Request OPTIONSreceived at stackwith server transaction idnull


Request OPTIONSreceived at stackwith server transaction idnull


Request OPTIONSreceived at stackwith server transaction idnull
-----------StatusCode:200----------------------------
-----------currentREsponse:OK----------------------------
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-a872936256c40065a4b147d4981cc74a;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as78f593d4
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="122774762471222574232720272b762673737773707674702b77212224717623205223223c2b2b3c2321243c232124" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Contact: <sip:160@localIP:5060>
Content-Type: application/sdp
Content-Length: 256

v=0
o=root 698934329 698934329 IN IP4 localIP
s=Asterisk PBX 10.5.1
c=IN IP4 localIP
t=0 0
m=audio 23142 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

javax.sip.SipException: Cannot create ACK - no remote Target!
    at gov.nist.javax.sip.stack.SIPDialog.createAck(SIPDialog.java:3021)
    at test.processResponse(test.java:323)
    at gov.nist.javax.sip.EventScanner.deliverEvent(EventScanner.java:296)
    at gov.nist.javax.sip.EventScanner.run(EventScanner.java:519)
    at java.lang.Thread.run(Thread.java:745)
-----------StatusCode:200----------------------------
-----------currentREsponse:OK----------------------------
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-a872936256c40065a4b147d4981cc74a;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as78f593d4
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="261340421045161140171314131f421247474347444240441f4315161045421714661716081f1f0817151008171510" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Contact: <sip:160@localIP:5060>
Content-Type: application/sdp
Content-Length: 256

v=0
o=root 698934329 698934329 IN IP4 localIP
s=Asterisk PBX 10.5.1
c=IN IP4 localIP
t=0 0
m=audio 23142 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

javax.sip.SipException: Cannot create ACK - no remote Target!
    at gov.nist.javax.sip.stack.SIPDialog.createAck(SIPDialog.java:3021)
    at test.processResponse(test.java:323)
    at gov.nist.javax.sip.EventScanner.deliverEvent(EventScanner.java:296)
    at gov.nist.javax.sip.EventScanner.run(EventScanner.java:519)
    at java.lang.Thread.run(Thread.java:745)
-----------StatusCode:200----------------------------
-----------currentREsponse:OK----------------------------
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-a872936256c40065a4b147d4981cc74a;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as78f593d4
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a693c0c290c59691c0979394939fc292c7c7c3c7c4c2c0c49fc3959690c5c29794e69796889f9f8897959088979590" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Contact: <sip:160@localIP:5060>
Content-Type: application/sdp
Content-Length: 256

v=0
o=root 698934329 698934329 IN IP4 localIP
s=Asterisk PBX 10.5.1
c=IN IP4 localIP
t=0 0
m=audio 23142 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

javax.sip.SipException: Cannot create ACK - no remote Target!
    at gov.nist.javax.sip.stack.SIPDialog.createAck(SIPDialog.java:3021)
    at test.processResponse(test.java:323)
    at gov.nist.javax.sip.EventScanner.deliverEvent(EventScanner.java:296)
    at gov.nist.javax.sip.EventScanner.run(EventScanner.java:519)
    at java.lang.Thread.run(Thread.java:745)


Request OPTIONSreceived at stackwith server transaction idnull
-----------StatusCode:200----------------------------
-----------currentREsponse:OK----------------------------
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.99.136.136:52216;branch=z9hG4bK-363735-a872936256c40065a4b147d4981cc74a;received=10.99.136.136;rport=52216
From: <sip:username@localIP>;tag=1825098223
To: <sip:160@localIP>;tag=as78f593d4
Call-ID: <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="d2e7b4b6e4b1e2e5b4e3e7e0e7ebb6e6b3b3b7b3b0b6b4b0ebb7e1e2e4b1b6e3e092e3e2fcebebfce3e1e4fce3e1e4" rel="noreferrer noopener nofollow">[email protected]</a>
CSeq: 5 INVITE
Server: Asterisk PBX 10.5.1
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO,PUBLISH
Supported: replaces,timer
Contact: <sip:160@localIP:5060>
Content-Type: application/sdp
Content-Length: 256

v=0
o=root 698934329 698934329 IN IP4 localIP
s=Asterisk PBX 10.5.1
c=IN IP4 localIP
t=0 0
m=audio 23142 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

javax.sip.SipException: Cannot create ACK - no remote Target!
    at gov.nist.javax.sip.stack.SIPDialog.createAck(SIPDialog.java:3021)
    at test.processResponse(test.java:323)
    at gov.nist.javax.sip.EventScanner.deliverEvent(EventScanner.java:296)
    at gov.nist.javax.sip.EventScanner.run(EventScanner.java:519)
    at java.lang.Thread.run(Thread.java:745)




Request OPTIONSreceived at stackwith server transaction idnull


Request BYEreceived at stackwith server transaction idnull
----------------Received a BYE-----------------------
 null TID


Request BYEreceived at stackwith server transaction idnull
----------------Received a BYE-----------------------
 null TID


Request BYEreceived at stackwith server transaction idnull
----------------Received a BYE-----------------------
     null TID

最佳答案

让我们尝试更详细一点。

我所做的是获取 JAIN SIP 1.2 下载中提供的示例 UAC 代码 JAIN SIP's Jenkins并修改它以涵盖注册和初始邀请。

我已经使用 IMS 核心进行了测试，因此它可能与您使用 Asterisk PBX 的体验略有不同，特别是我不需要对 INVITE 进行身份验证。

就高层结构而言，我有:

一个类 ( TestUAC ) 既是主类又实现 SipListener界面。

在 main 上，我初始化堆栈、设置监听器、读取任何配置，最后调用 sendRegister()这将发送第一个 REGISTER 并启动该过程。
于processResponse()打回来。根据响应的 CSeq 方法，我可以区分:
- 对 REGISTER 的回复 ( processRegisterResponse() )
- 对 INVITE 的回复 ( processInviteResponse() )
- 对“再见”的回复 ( processByeResponse() )
于processRequest()和其他回调我只是有痕迹。

一般来说，我保留很少的信息作为对象属性:

堆栈内容:引用 sipFactory , sipProvider , sipStack , addressFactory , messageFactory , headerFactory
有关我的身份信息以及我想与谁交谈的信息:

例如

   private String callingURI;
   private String calledURI;
   private String username;
   private String password;
   private Address fromNameAddress;
   private ContactHeader contactHeader;

此外，我还为 cseq 和(按照 JAIN SIP 示例)保留一个递增计数器，并保存 ackRequest 的副本，用于回复重新传输的 200 OK。

// Save the created ACK request, to respond to retransmitted 2xx
private Request ackRequest;

private long cseq=1L;

正如我所说，processResponse()只是基于Cseq方法进行分配:

public void processResponse(ResponseEvent responseReceivedEvent) {
    System.out.println("Got a response");
    Response response = (Response) responseReceivedEvent.getResponse();
    CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);

    System.out.println("Response received : Status Code = "
            + response.getStatusCode() + " " + cseq);

    try {
        if(cseq.getMethod().equals(Request.REGISTER)) {
            processRegisterResponse(responseReceivedEvent);
        }
        else if(cseq.getMethod().equals(Request.INVITE)) {
            processInviteResponse(responseReceivedEvent);
        }
        else if(cseq.getMethod().equals(Request.BYE)) {
            processByeResponse(responseReceivedEvent);
        }
        else {
            System.out.println("Response to unexpected request");
        }
    } catch(Exception e)  {
        e.printStackTrace();
    }
}

processRegisterResponse()区分 401 Unauthorized 和 200 OK 响应。在第一种情况下，它将触发发送带有身份验证的注册。在第二种情况下，它将请求发送 INVITE:

private void processRegisterResponse(ResponseEvent responseReceivedEvent) throws TransactionUnavailableException, ParseException, InvalidArgumentException, SipException, NoSuchAlgorithmException {
    Response response = (Response) responseReceivedEvent.getResponse();

    if(response.getStatusCode() == Response.UNAUTHORIZED) {
        sendRegister(response);
    }
    else if (response.getStatusCode() == Response.OK) {
        contactHeader=(ContactHeader)response.getHeader(ContactHeader.NAME);
        sendInvite();
    }               
}

现在，对于 sendInvite() (我将尝试将其提取到相关部分)。

private void sendInvite() throws ParseException, InvalidArgumentException, TransactionUnavailableException, SipException {

    // create To Header
    URI toAddress = addressFactory.createURI(calledURI);
    Address toNameAddress = addressFactory.createAddress(toAddress);
    ToHeader toHeader = headerFactory.createToHeader(toNameAddress,null);

    FromHeader fromHeader = headerFactory.createFromHeader(fromNameAddress, "12345");
    // Create ViaHeaders
    ArrayList<ViaHeader> viaHeaders = getViaHeaders();

    // Create a new CallId header
    CallIdHeader callIdHeader = sipProvider.getNewCallId();

    // Create a new Cseq header
    CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(cseq,Request.INVITE);
    cseq++;

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

    // Create the request.
    Request request = messageFactory.createRequest(toAddress,
            Request.INVITE, callIdHeader, cSeqHeader, fromHeader,
            toHeader, viaHeaders, maxForwards);

    request.addHeader(contactHeader);

    // at this point you should add the rest of the headers, content, etc.

    // Create the client transaction.
    ClientTransaction currentTid = sipProvider.getNewClientTransaction(request);
    // send the request out.
    currentTid.sendRequest();
}

最后，接下来发生的事情是我们将收到 INVITE 的 200 OK。这主要是来自 JAIN SLEE 示例的代码，我已将其移至 processInviteResponse() 中。 (我将再次尝试将其提炼为基本内容)。

private void processInviteResponse(ResponseEvent responseReceivedEvent) throws SipException, InvalidArgumentException {
    Response response = (Response) responseReceivedEvent.getResponse();
    ClientTransaction tid = responseReceivedEvent.getClientTransaction();
    CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);     
    Dialog dialog = responseReceivedEvent.getDialog();

    if (tid == null) {
        // RFC3261: MUST respond to every 2xx
        if (ackRequest!=null && dialog!=null) {
            System.out.println("re-sending ACK");
            dialog.sendAck(ackRequest);
        }
        return;
    }

    if (response.getStatusCode() == Response.OK) {
        System.out.println("Dialog after 200 OK  " + dialog);
        System.out.println("Dialog State after 200 OK  " + dialog.getState());
        ackRequest = dialog.createAck(cseq.getSeqNumber() );
        System.out.println("Sending ACK");
        dialog.sendAck(ackRequest);
    }
}

收到 200 OK 并发送 ACK 后，您可能应该考虑下一步做什么:例如，在 JAIN SLEE UAC 示例中，它启动 TimerTask一段时间后发送再见。

您还可以在其中添加其他错误(或临时)响应的处理。但请记住，堆栈将自动确认(无需代码)最终的错误响应。

关于java - SIP ACK 对话框为空，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29808060/

java - SIP ACK 对话框为空

上一篇：java - 如何检查二维数组是否越界？

下一篇：java - 从现有的 byte[] 生成新的 byte[]