private Task <SocketError> SIPNonInviteTransaction_TransactionRequestReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPRequest sipRequest)
 {
     return(NonInviteRequestReceived?.Invoke(localSIPEndPoint, remoteEndPoint, this, sipRequest));
 }
 private void SIPNonInviteTransaction_TransactionRequestReceived(SIPEndPoint localSIPEndPoint, SIPEndPoint remoteEndPoint, SIPTransaction sipTransaction, SIPRequest sipRequest)
 {
     NonInviteRequestReceived?.Invoke(localSIPEndPoint, remoteEndPoint, this, sipRequest);
 }