Examples of javax.sip.header.CallIdHeader

javax.sip.header.CallIdHeader
The Call-ID header field uniquely identifies a particular invitation or all registrations of a particular client. A single multimedia conference can give rise to several calls with different Call-IDs, for example, if a user invites a single individual several times to the same (long-running) conference. Call-IDs are case-sensitive and are simply compared byte-by-byte.
Call-ID is generated by the combination of a random string and the softphone's host name or IP address. The combination of the To tag, From tag, and Call-ID completely defines a peer-to-peer SIP relationship between two users and is referred to as a dialog. It MUST be the same for all requests and responses sent by either User Agent in a dialog. It SHOULD be the same in each registration from a User Agent.
All SIP User Agents must have a means to guarantee that the Call-ID header fields they produce will not be inadvertently generated by any other User Agent. Note that when requests are retried after certain failure responses that solicit an amendment to a request (for example, a challenge for authentication), these retried requests are not considered new requests, and therefore do not need new Call-ID header fields.
Use of cryptographically random identifiers in the generation of Call-IDs is RECOMMENDED. Implementations MAY use the form "localid@host".
For Example:
Call-ID: f81d4fae-7dec-11d0-a765-00a0c91e6bf6@jcp.org @author BEA Systems, NIST @version 1.2

                // Create ContentTypeHeader
                ContentTypeHeader contentTypeHeader = protocolObjects.headerFactory
                        .createContentTypeHeader("application", "sdp");


                // Create a new CallId header
                CallIdHeader callIdHeader = provider.getNewCallId();
                // JvB: Make sure that the implementation matches the messagefactory
                callIdHeader = protocolObjects.headerFactory.createCallIdHeader( callIdHeader.getCallId() );




                // Create a new Cseq header
                CSeqHeader cSeqHeader = protocolObjects.headerFactory
                        .createCSeqHeader(1L, Request.INVITE);

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                // Create ContentTypeHeader
                ContentTypeHeader contentTypeHeader = headerFactory
                        .createContentTypeHeader("application", "sdp");


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


                // Create a new Cseq header
                CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                        Request.INVITE);

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                // Create ContentTypeHeader
                ContentTypeHeader contentTypeHeader = headerFactory
                        .createContentTypeHeader("application", "sdp");


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


                // Create a new Cseq header
                CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                        Request.INVITE);

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                // Create ContentTypeHeader
                ContentTypeHeader contentTypeHeader = headerFactory
                        .createContentTypeHeader("application", "sdp");


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


                // Create a new Cseq header
                CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                        Request.INVITE);

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            // Create ContentTypeHeader
            ContentTypeHeader contentTypeHeader = headerFactory
                    .createContentTypeHeader("application", "sdp");


            // Create a new CallId header
            CallIdHeader callIdHeader = sipProvider.getNewCallId();
            // JvB: Make sure that the implementation matches the messagefactory
            callIdHeader = headerFactory
                    .createCallIdHeader(callIdHeader.getCallId());


            // Create a new Cseq header
            CSeqHeader cSeqHeader = headerFactory
                    .createCSeqHeader(1L, Request.INVITE);

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                // Create ContentTypeHeader
                ContentTypeHeader contentTypeHeader = headerFactory
                        .createContentTypeHeader("application", "sdp");


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


                // Create a new Cseq header
                CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                        Request.INVITE);

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                // Create ContentTypeHeader
                ContentTypeHeader contentTypeHeader = headerFactory
                        .createContentTypeHeader("application", "sdp");


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


                // Create a new Cseq header
                CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                        Request.INVITE);

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    while (it.hasNext()) {
      // Get the next dialog
      SIPDialog itDialog = (SIPDialog) it.next();


      // Get the call id associated with this dialog
      CallIdHeader callIdHeader = (itDialog != null ? itDialog
          .getCallId() : null);
      String callID = (callIdHeader != null ? callIdHeader.getCallId()
          : null);


      // Check if the application knows about this call id
      if (itDialog != null && callID != null
          && !activeCallIDs.contains(callID)) {

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            // Create ContentTypeHeader
            ContentTypeHeader contentTypeHeader = headerFactory
                    .createContentTypeHeader("application", "sdp");


            // Create a new CallId header
            CallIdHeader callIdHeader = sipProvider.getNewCallId();
            // JvB: Make sure that the implementation matches the messagefactory
            callIdHeader = headerFactory.createCallIdHeader( callIdHeader.getCallId() );




            // Create a new Cseq header
            CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                    Request.INVITE);

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            // add via headers
            viaHeaders.add(viaHeader);


            // Create a new CallId header
            CallIdHeader callIdHeader = mySipProvider.getNewCallId();
            // JvB: Make sure that the implementation matches the messagefactory
            callIdHeader = headerFactory.createCallIdHeader( callIdHeader.getCallId() );




            // Create a new Cseq header
            CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
                    Request.INVITE);

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