Voice API in C# / .NET: Code Example

Place a Call from C# / .NET

Call this from your server and keep the API key in an environment variable.

// .NET 6+ HttpClient. No NuGet package needed.
using var http = new HttpClient();
http.DefaultRequestHeaders.Authorization =
    new AuthenticationHeaderValue("Bearer", Environment.GetEnvironmentVariable("EDESY_API_KEY"));
var payload = new {
    to = "+919876543210",
    from = "+918045678901", // your Edesy number
    text = "Hello from Edesy. Your order has shipped.",
    status_callback = "https://your-app.com/webhooks/call-status",
};
var res = await http.PostAsJsonAsync("https://voice-api.edesy.in/v1/calls", payload);
res.EnsureSuccessStatusCode();
Console.WriteLine(await res.Content.ReadAsStringAsync());

Control the call with VoiceML

Instead of text, pass url: your endpoint returns VoiceML, a JSON list of instructions. It is not TwiML.

{
  "instructions": [
    { "verb": "say", "text": "Your order has shipped.", "language": "en-IN" },
    {
      "verb": "gather",
      "input": "dtmf",
      "num_digits": 1,
      "action": "https://your-app.com/voiceml/order",
      "nested": [{ "verb": "say", "text": "Press 1 to confirm, or 2 to cancel." }]
    }
  ]
}

Twilio-style request

The Twilio-shaped alias accepts Basic auth with your Account SID and Auth Token.

curl -X POST https://voice-api.edesy.in/v1/Accounts/$ACCOUNT_SID/Calls \
  -u "$ACCOUNT_SID:$AUTH_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"to":"+919876543210","from":"+918045678901","text":"Hello from Edesy."}'