public void A2PSendSms()
{
// Send the SMS message with the text "Test message" from the phone
// number 447443332211 to the phone numbers 447443332212 and
// 447443332213.
try {
var voximplant = new VoximplantAPI();
var result = voximplant.A2PSendSms(
"447443332211",
"447443332212",
"Test message"
).Result;
Console.WriteLine($"Response: {result.ToString()}");
} catch (Exception e) {
Console.WriteLine($"Error: {e.Message}");
}
}