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Connect phone numbers so your AI agents can make real calls.

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Capabilities

✅ Outbound calls to any number
✅ Batch calls via CSV upload
🔜 Inbound calls (coming soon)

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Requirements

  • Phone number from telephony provider (Twilio, Plivo, Exotel, Telnyx, Vonage)
  • Access to provider dashboard
  • 10-15 minutes for setup

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Setup (4 Steps)

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1. Create SIP Trunk

In your provider’s dashboard, create a new SIP trunk. Name it clearly: toughtongue-production

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2. Configure Termination

Create credentials for outbound calls:
  • Username: e.g., ttai_outbound_user
  • Password: 12+ characters, mixed case, numbers, symbols
Save the termination URI (e.g., yourname.pstn.twilio.com).

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3. Assign Phone Number

Link your number to the SIP trunk in your provider dashboard.

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4. Connect in Tough Tongue AI

Go to Scenario → Phone Call → SIP Configuration:
  • Phone number in E.164 format (+12125551234)
  • Termination URI from Step 2
  • SIP credentials from Step 2

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Making Calls

Single call: Enter number + optional name, click call. Batch calls: Upload CSV with phone_number and user_name columns.

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Provider Tips

Twilio:
  • Enable call transfer and “Enable PSTN transfer”
  • URI format: yourname.pstn.twilio.com
India: Use Plivo, Exotel, or IVRS Solution (email support@toughtongueai.com). Help: support@toughtongueai.com for custom SIP configurations.