SIP Refer transfers
5, Jun 2025
We are excited to share that you can hand off active calls between providers from an AI Agent, either in the Telnyx Mission Control Portal or API. This means you can get lower transfer costs and direct provider-to-provider handoff, with no Telnyx voice termination required.
What’s new
- SIP Refer tool in the AI Assistant. Transfer calls directly from the portal or API.
- Lower per-transfer fees. SIP Refer cuts out extra steps, so you only pay for what you use.
- Full call control handoff. The receiving provider manages the call, supporting complex or compliance-heavy workflows.
- API and UI parity. Manage transfers in code or in the portal, whichever fits your operation.
- Flexible for real-world workflows. Route calls between systems or providers without tying up Telnyx voice resources.
Why it matters
For high-volume, regulated operations, this means faster, cleaner, and more auditable call handoffs. Any team automating scheduling, claims, or dispatch can now move calls securely and efficiently between carriers or internal teams.