A Twilio Alternative Built for Calls in India

Edesy at a glance

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TwiML to VoiceML: the one rewrite

The answer URL is fetched when the callee picks up. Twilio expects XML; Edesy expects a JSON list of instructions.

<!-- Twilio: TwiML -->
<Response>
  <Say>Hi! This is a call from Acme.</Say>
  <Play>https://cdn.example.com/promo.wav</Play>
  <Hangup/>
</Response>

{
  "instructions": [
    { "verb": "say",  "text": "Hi! This is a call from Acme." },
    { "verb": "play", "url": "https://cdn.example.com/promo.wav" },
    { "verb": "hangup" }
  ]
}

VoiceML verbs: say, play, gather (keypad digits), record, dial, stream, redirect, reject, hangup and pause. See the VoiceML reference.

Place a call with your Account SID and Auth Token

curl -X POST https://voice-api.edesy.in/v1/calls \
  -u "$ACCOUNT_SID:$AUTH_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "+9180XXXXXXXX",
    "to":   "+9198XXXXXXXX",
    "url":  "https://myapp.example.com/answer",
    "status_callback": "https://myapp.example.com/call-status"
  }'

The request body is JSON. url is the answer URL, status_callback gets lifecycle events, and timeout (5 to 600 seconds), caller_name and custom_parameters work per call.

The status callback you already parse

{
  "CallSid": "CA...",
  "AccountSid": "...",
  "From": "+9180XXXXXXXX",
  "To": "+9198XXXXXXXX",
  "CallStatus": "no-answer",
  "Direction": "outbound",
  "Duration": 0,
  "SipResponseCode": 480,
  "HangupReason": "unavailable",
  "CallOutcome": "unreachable",
  "Timestamp": "2026-07-15T09:30:00Z"
}

HangupReason and CallOutcome go further than a bare failed: they tell a switched-off phone from an invalid number from a network problem. Callbacks are signed with X-Webhook-Signature: v1=<hex> over <X-Webhook-Timestamp>.<body>, retried with backoff, and listed in a delivery log. See status callbacks.