Outbound
You start the call. Agent dials a list, opens with a script, qualifies, books, or leaves a voicemail disposition.
Free tools
AI calling agent
Inbound + outbound voice AI on your Exotel India number. Place a sales call to one customer below.
AI sales call
Dial one customer from ExoPhone 04045209506. Dial PIN: use the PIN you set (same as Exotel trial pin digits). Outbound needs Exotel KYC — until then, ask the customer to call your ExoPhone (inbound AI works).
What this agent does
An AI calling agent places and answers phone calls like a trained teammate. It listens (speech-to-text), thinks (LLM + your business rules), speaks (text-to-speech), and writes outcomes into CRM / WhatsApp / your app.
- Outbound — dial leads, reminders, surveys, re-engagement.
- Inbound — answer your business number 24/7, route intent, book slots, escalate.
- Tools — check calendar, create ticket, update deal, transfer to human.
- Compliance — DND / consent, recording notice, call time windows.
Core pipeline
- 1TelephonyTwilio / Exotel / Plivo / DID
- 2Media bridgeWebSocket / SIP / Media Streams
- 3STTWhisper / Deepgram / Google
- 4BrainLLM + prompt + tools + CRM
- 5TTSElevenLabs / Google / Azure
- 6EventsWebhook → log, SMS, dashboard
Inbound
Customer dials your number. Agent greets, detects intent, answers FAQs, books, or warm-transfers to a human.
Hybrid
Same number + same brain. Outbound campaigns by day; inbound overflow after hours. One transcript store.
Exotel free trial (India)
Free Indian ExoPhone for ~7 days + credits. Sign up, whitelist your mobile, paste keys below — we dial via Exotel and run the AI menu on Gather.
Setup secret
Exotel connected
ExoPhone 04045209506
Gemini brain
AI
AI answers the call (replace Switch Case)
Hangup in ~8s = Gather URL failure → Hangup. Rebuild like this:
- Remove Switch Case. Call Start → Gather only
- Gather → Configure parameters dynamically by providing a URL
- Primary:
https://stsofts.com/exotel-ping.php(test first) - Fallback:
https://stsofts.com/exotel-prompt.php - URL failure → Greeting (not Hangup) then back to Gather
- Digits → Passthru
https://stsofts.com/exotel-passthru.php - Passthru 200 → Gather · 302 → Hangup
- No digits → Gather · SAVE → call again
- If you hear “AI webhook is reachable”, set Primary to
https://stsofts.com/exotel-prompt.php
01
Create free Exotel trial
Register at my.exotel.com → open Settings → API for Account SID, API Key, API Token. Your trial ExoPhone appears under ExoPhones.
- Whitelist your mobile: Settings → Whitelist Numbers (OTP) — required on trial
- KYC required before outbound dials
1) Connect Exotel
2) Test outbound (whitelisted mobile only)
IVR
On-call menu (AI)
Caller hears Gemini-powered prompts. Keys: 1 software · 2 website/app · 3 AI · 4 pricing · 9 human · 0 end.
WH
Live webhooks
GET https://stsofts.com/api/calls/exotel/prompt ← Gather TTS JSON
GET https://stsofts.com/api/calls/exotel/passthru ← 200 loop / 302 exit
POST https://stsofts.com/api/calls/outbound ← dial Exotel
POST https://stsofts.com/api/calls/setup ← save keys
Outbound calling — how it works
You (or a campaign) start the call. The agent dials, speaks first, and drives toward a disposition.
1. QueueLead list + consent + time window
2. DialAPI: create call from your DID
3. ConnectAnswered / busy / voicemail / no-answer
4. ConverseSTT → LLM → TTS loop
5. ActBook / qualify / SMS link / transfer
6. CloseDisposition + CRM + summary
Typical API shape
POST /api/calls/outbound
{
"to": "+9198XXXXXXXX",
"from": "+9140XXXXXXX",
"agent_id": "sales-followup",
"context": {
"name": "Ravi",
"product": "ERP demo",
"last_touch": "website form"
}
}
Telephony provider dials to. On answer, media streams into the AI brain with context injected into the prompt.
Conversation goals
- Confirm identity (“Am I speaking with Ravi?”)
- State purpose in one sentence
- Ask 2–4 qualifying questions
- Offer a next step (demo slot / payment link)
- Handle objections; never argue
- If unsure → warm transfer or callback
Dispositions
interested
callback
not_interested
wrong_number
voicemail
dnd
booked
Simulate outbound
Inbound receiving — how it works
Customer dials your number. Provider hits your webhook; you return answer instructions that connect the call to the AI agent.
1. RingPSTN → your DID
2. WebhookPOST /api/calls/inbound
3. AnswerConnect stream / agent SID
4. GreetRecording notice + greeting
5. IntentSupport / sales / booking
6. ResolveFAQ · book · ticket · transfer
What your inbound webhook returns
// Conceptual response to telephony
{
"action": "connect_ai_agent",
"agent_id": "front-desk",
"greeting": "Thanks for calling STSOFTS…",
"record": true,
"language": "en-IN",
"transfer_number": "+91XXXXXXXXXX",
"max_duration_sec": 600
}
Providers differ (TwiML / Exotel applet / custom JSON). Conceptually you always: answer → stream audio → run agent → hangup or transfer.
Inbound intents to support
- Hours / location / pricing — FAQ from knowledge base
- Order / ticket status — tool call with phone or ID
- Book demo / appointment — calendar tool
- “Talk to a person” — warm transfer + whisper context
- After hours — take message + SMS confirmation
Events you should store
call_sid
from
to
started_at
ended_at
transcript
summary
recording_url
intent
transferred
Simulate inbound
Configure your agent (concept playground)
Fill the fields — we generate a ready system prompt, sample greetings, and webhook sketch. No live phone calls from this page (keys stay on your server).
System prompt
Click “Generate blueprint”.
Webhook sketch
…
ENV placeholders
…