Migration
Moving an existing voice agent to LionVoice is a 4-step checklist:
1. Prompt & behaviour
Copy your system prompt and first message into a LionVoice agent. Set `first_speaker` to match your current flow (assistant greets vs caller first). Max duration and voicemail behaviour map 1:1.
2. Voice & language
Lion AI voices: Sari (best for Lithuanian), Emma, Nathan (Liutas), Adrian (Aurora). Same voice works across all 60+ languages.
3. Knowledge base
Export your knowledge base files and upload them with `POST /v1/files`, assigning to your agent. Keep files topic-scoped for the best answer quality.
4. Tools
Recreate each function tool as an HTTP endpoint call — LionVoice calls your existing webhooks with `{"name": ..., "arguments": {...}}`. Most Vapi/Retell function tools work with a thin adapter (the payload shape is intentionally similar).
5. Numbers
Point your SIP trunk (or forward your number) to LionVoice. Nothing is ported — you keep the numbers and the provider.
Need help? [email protected] — you will talk to the person who builds the platform.