private static void SendSMS(FlowrouteNumbersAndMessagingClient client, string from_did, string to_did, string callback = null)
{
Message msg = new Message();
msg.From = from_did;
msg.To = to_did; // Replace with your mobile number to receive messages sent from your Flowroute account
msg.Body = "Hi Chris";
msg.Callback = callback;
MessagesController messages = client.Messages;
string result = messages.CreateSendAMessage(msg);
Console.WriteLine(result);
}