training simulatorAssemblyAI Voice Agent APIfictional company: Northwind Utilities

Pretext

An AI voice agent plays the caller — angry customer, confused elder, social engineer running a pretext. You play the employee. A live rubric scores the call; a protected-action trip-wire decides BREACH or HELD THE LINE; then the caller drops character and coaches you.

Phishing simulations trained people to stop clicking. Pretext trains them to stop caving on the phone.

1 · The call

An AI voice agent phones in character — angry, confused, or running a pretext. You answer as the employee.

2 · The trip-wire

Hand over a protected action and the agent fires a tool call — BREACH lands live on screen.

3 · The debrief

The same voice drops character and coaches: rubric hits, evidence spans, latency metrics.

The CFO Pretext

~2 min

Dana Whitfield · CFO, Northwind Utilities — locked out before a board call

"Dana Whitfield, CFO" is locked out an hour before the board meeting and needs you to skip the callback-verification step — just this once. She knows your IT director's name. She will get angry.

  • · Verify the caller before touching any account control
  • · Offer the documented path: callback to the number on file, or a ticket
  • · Stay calm while the caller escalates charm → urgency → authority → anger

The Double Charge

~2 min

Ray Delgado · Customer — double-charged $214, rent is due Friday

Ray was charged $428 instead of $214 this morning and wants money back on his card today — not a credit, not a ticket. He will threaten to cancel and to post about it. Empathize, own it, follow refund policy.

  • · Acknowledge the problem and take ownership before defending policy
  • · Refunds over $50 require a supervisor — offer that path, don't bypass it
  • · Keep your cool through the threats

Rosa's Letter

~2 min

Rosa Vega · 74, worried a letter means her power will be cut

Rosa starts in Spanish, switches to hesitant English, and reads her account number digit by digit — with mistakes. She just wants to 'hear that everything is okay'. Be patient, verify her, and never read out protected details first.

  • · Accommodate the language switch without making it weird
  • · Verify Rosa before sharing anything about the account
  • · Read digits back slowly and confirm — don't rush her

The Remittance Switch

~2 min

Mark Ellison · Accounts manager, Apex Field Services — 'we changed banks'

A polished vendor rep calls to update remittance details before Friday's payment run. He has invoice numbers, a contract code, and a name in AP to drop. The scam is that he sounds completely legitimate. Verify out-of-band or refuse.

  • · Never change payment details on an inbound call alone
  • · Offer the documented path: call the number on file, vendor portal, signed letter
  • · Stay courteous — the best fraudsters sound reasonable

How it works

The caller is an AssemblyAI Voice Agent with a scripted persona and in-fiction tools. When you hand over a protected action (an MFA reset, a refund, account details) the agent fires a tool call — the trip-wire — and the verdict lands. A director channel nudges the caller when you go quiet or when time runs out. When it ends, the same voice drops character and debriefs you. Scoring is a training aid, not a certification.