J2ME SIP 连接 VIA 标头

发布于 2024-12-26 10:58:54 字数 1655 浏览 2 评论 0原文

我在 J2ME 应用程序中将 INVITE 发送到 sip 服务器，并使用 rtp 进行数据传输。VIA 标头存在冲突，即，隐含的 via 标头包含 UDP 而不是 rtp。但我没有在代码中的任何地方使用“upd”。如果我们考虑 JAINSIP，我们可以修改 VIA 标头。但是 j2m2 api 不允许修改 VIA 标头(此处）。

我该如何解决这个问题？如何避免在我的请求中隐式添加 udp 到 VIA 标头。我应该在哪里再次看到？
这是我发送的邀请码

 try {  final String ip = scn.getLocalAddress();
        contact = "sip:user@" + scn.getLocalAddress() + ":" + scn.getLocalPort();
        scc = (SipClientConnection)  Connector.open("sip:[email protected]:5060;transport=tcp");
        scc.setListener(this);
        scc.initRequest("INVITE", scn);

        scc.setRequestURI("sip:[email protected]:5060;transport=tcp");
        scc.setHeader("From", "sip:user@" + scn.getLocalAddress() + ":" + scn.getLocalPort() + ";transport=tcp");

        scc.setHeader("To", "sip:[email protected]:5060;transport=tcp");
        scc.setHeader("Contact", contact);
        System.out.println("Session id is :" + sId);

        scc.setHeader("Session-Id", sId);
        scc.setHeader("Content-Type", "application/sdp");
        String sdp = "....";
        OutputStream os = scc.openContentOutputStream();
        os.write(sdp.getBytes());
        os.close();

原文

I send INVITE to a sip server in a J2ME app and use rtp for data transmision.There is a conflict in VIA header which is that,implecite via header contain UDP instead of rtp. But I haven't use 'upd' any where in my code.If we consider the JAINSIP we can modify the VIA header header.But j2m2 api doesn't allow to modify the VIA header(here).

How can I solve this?how to avoid implicitly adding udp to VIA header in my request.Where I should see again??
Here is my sending INVITE Code

 try {  final String ip = scn.getLocalAddress();
        contact = "sip:user@" + scn.getLocalAddress() + ":" + scn.getLocalPort();
        scc = (SipClientConnection)  Connector.open("sip:[email protected]:5060;transport=tcp");
        scc.setListener(this);
        scc.initRequest("INVITE", scn);

        scc.setRequestURI("sip:[email protected]:5060;transport=tcp");
        scc.setHeader("From", "sip:user@" + scn.getLocalAddress() + ":" + scn.getLocalPort() + ";transport=tcp");

        scc.setHeader("To", "sip:[email protected]:5060;transport=tcp");
        scc.setHeader("Contact", contact);
        System.out.println("Session id is :" + sId);

        scc.setHeader("Session-Id", sId);
        scc.setHeader("Content-Type", "application/sdp");
        String sdp = "....";
        OutputStream os = scc.openContentOutputStream();
        os.write(sdp.getBytes());
        os.close();

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