SIPSorcery.SIP.UACInviteTransaction.UACInviteTransaction_TransactionInformationResponseReceived C# (CSharp) Method

        private void UACInviteTransaction_TransactionInformationResponseReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPResponse sipResponse)
        {
            try
            {
                if (UACInviteTransactionInformationResponseReceived != null)
                {
                    UACInviteTransactionInformationResponseReceived(localSIPEndPoint, remoteEndPoint, sipTransaction, sipResponse);
                }

                if (CDR != null)
                {
                    SIPEndPoint localEP = SIPEndPoint.TryParse(sipResponse.Header.ProxyReceivedOn) ?? localSIPEndPoint;
                    SIPEndPoint remoteEP = SIPEndPoint.TryParse(sipResponse.Header.ProxyReceivedFrom) ?? remoteEndPoint;
                    CDR.Progress(sipResponse.Status, sipResponse.ReasonPhrase, localEP, remoteEP);
                }
            }
            catch (Exception excp)
            {
                logger.Error("Exception UACInviteTransaction_TransactionInformationResponseReceived. " + excp.Message);
            }
        }