Glossary
What is an SFU (Selective Forwarding Unit)?
An SFU is the server that forwards live audio and video in a group call, without mixing it.
The problem
In a group call, each participant sends one stream to the SFU, and the SFU forwards the right streams to each participant — unlike an MCU, which mixes everything into one stream. Cloudflare Realtime SFU is the planned infrastructure for Interactalk group calls.
How Interactalk helps — planned
In a group call, each participant sends one stream to the SFU, and the SFU forwards the right streams to each participant — unlike an MCU, which mixes everything into one stream. Cloudflare Realtime SFU is the planned infrastructure for Interactalk group calls.
What it looks like in practice
Example: a town hall with one speaker and 100 listeners. The SFU forwards the speaker's stream to all listeners, efficiently, without mixing.
What you get
Efficient
One upload, many forwards.
Scalable
Works for large groups, in the planned flow.
Low latency
Forwarding, not mixing, is faster.
Cloudflare Realtime
The planned SFU for Interactalk.
How it works
1. Connect — a customer clicks Talk in a browser, no app, no number needed. 2. Configure — you set the agent, rules, and workflows once. 3. Communicate — the AI agent, declaring itself as AI upfront, listens, answers, and acts. 4. Optimize — every conversation becomes a booking, ticket, CRM update, or follow-up, not just a recording. This flow is the Interactalk direction; the live product is still in development, and no live call is claimed here.
Frequently asked questions
What is What is an SFU (Selective Forwarding Unit)? with Interactalk?
What is an SFU (Selective Forwarding Unit)? with Interactalk is the planned direction described on this page: SFU handled by an AI agent that declares itself as AI upfront, in a browser-first call. It is planned, not live yet, and no live call is claimed here.
Is What is an SFU (Selective Forwarding Unit)? live yet?
No. Interactalk is a product in development. The pages on this site describe the planned direction, with demo and preview labels where applicable. No live call, booking, or integration is claimed until it is actually shipped and verified.
How much does What is an SFU (Selective Forwarding Unit)? cost?
No prices are published yet, pending infrastructure cost and margin validation. Tiers are named only (Starter, Growth, Enterprise) on the pricing page, with no numbers. Prices will be published only when costs are validated.
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Status: Planned/Preview. No prices, customers, certifications, or live calls are claimed on this page. Interactalk LLC, New Mexico — entity as supplied, registration not independently verified.