SIPSorcery.SIP.App.SIPClientUserAgent.GetByeRequest C# (CSharp) Method

        private SIPRequest GetByeRequest(SIPResponse inviteResponse, SIPURI byeURI, SIPEndPoint localSIPEndPoint)
        {
            SIPRequest byeRequest = new SIPRequest(SIPMethodsEnum.BYE, byeURI);
            byeRequest.LocalSIPEndPoint = localSIPEndPoint;

            SIPFromHeader byeFromHeader = inviteResponse.Header.From;
            SIPToHeader byeToHeader = inviteResponse.Header.To;
            int cseq = inviteResponse.Header.CSeq + 1;

            SIPHeader byeHeader = new SIPHeader(byeFromHeader, byeToHeader, cseq, inviteResponse.Header.CallId);
            byeHeader.CSeqMethod = SIPMethodsEnum.BYE;
            byeHeader.ProxySendFrom = m_serverTransaction.TransactionRequest.Header.ProxySendFrom;
            byeRequest.Header = byeHeader;

            byeRequest.Header.Routes = (inviteResponse.Header.RecordRoutes != null) ? inviteResponse.Header.RecordRoutes.Reversed() : null;

            SIPViaHeader viaHeader = new SIPViaHeader(localSIPEndPoint, CallProperties.CreateBranchId());
            byeRequest.Header.Vias.PushViaHeader(viaHeader);

            return byeRequest;
        }