Problem

The voice-call plugin keys sessions by caller phone number (voice:${normalizedPhone} in response-generator.ts). This means all calls from the same number share conversation history, causing the AI to "remember" previous calls — referencing prior appointments, caller details, etc.

For use cases like a phone receptionist/booking agent, each call should be treated as a completely independent interaction with no memory of prior calls.

Current Workaround

Patching response-generator.ts to use voice:call:${callId} instead of voice:${normalizedPhone} as the session key. This works but gets overwritten on every update.

Proposed Solution

Add a sessionScope config option to the voice-call plugin:

{
  plugins: {
    entries: {
      "voice-call": {
        config: {
          sessionScope: "per-call",  // "per-call" | "per-phone" (default)
        }
      }
    }
  }
}

• per-phone (default): Current behavior — sessions keyed by phone number, history persists across calls. Useful for personal assistant use cases.
• per-call: Sessions keyed by call ID — each call starts fresh with zero history. Useful for receptionist/booking/IVR use cases.

Context

Running a koi pond service receptionist that books consultations. The per-phone session caused the AI to reference prior test calls and appointments when it should treat every caller as brand new.