public void DeactivatePhoneNumber()
{
// Deactivate the phone 1.
try {
var voximplant = new VoximplantAPI();
var result = voximplant.DeactivatePhoneNumber(
phoneId: "1"
).Result;
Console.WriteLine($"Response: {result.ToString()}");
} catch (Exception e) {
Console.WriteLine($"Error: {e.Message}");
}
}