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Hear the silence. Price the minute. Test the script.
Intelligavoice.com is a bench for developers building AI phone agents that answer or place calls: booking lines, support lines, appointment reminders. Free during early access, no sign-up.
Latency Lab
Set the time each stage of a turn takes. The waterfall adds it up and tells you if a caller would find it snappy or awkward.
Want to hear it? The Pause Player plays your silence through Web Audio.
Minute Math
Enter your own per-minute rates and call volume to see the cost of a call and of a month.
The starting numbers are an example scenario. Replace them with the rates from your own providers.
- per minute
- per call
- billed minutes
- per month (example)
Full breakdown and scenario comparison: Minute Math.
Script Desk
Describe a call and get a phone-ready script: opening with an AI notice, questions, a fallback, a human handoff and a close.
Two more AI jobs live in Script Desk: messy caller utterances and failed-call triage. Output may be wrong; review before use.
Tools
Problem and solution
problem
Teams building AI phone agents guess. They can't tell whether a stack of speech-to-text, language model and text-to-speech will feel natural to a caller. They can't forecast the per-minute cost before launch. And they write chat-style prompts that fail on a real call, where callers interrupt, mumble and go quiet.
solution
Intelligavoice.com is a bench for voice-agent builders. It turns the three hard questions of phone AI into hands-on tools: how long is the pause, what does a call minute cost, and will the script survive real callers. The calculators run in the browser.
Product, business model and vision
product
Latency Lab adds up each stage of a turn and lets you hear the resulting silence through Web Audio. Minute Math prices a call from your own rates and volumes. Script Desk uses AI to write phone-ready scripts, generate messy caller utterances to test against, and triage failed-call notes. A go-live checklist and short guides complete it.
business model
Free during early access, with no sign-up. Revenue comes from a paid pro tier with saved projects and team sharing (planned, not available yet), plus sponsored integration guides from voice infrastructure vendors (planned, not available yet). No paid plan is on sale today. Usage stays light because the calculators run on the visitor's device and the AI tasks are small and focused.
vision
To be the place every developer opens before shipping a phone agent, and the shared reference for what a good voice call should sound, cost and handle.
How it works
# one pass, four steps 01 hear Latency Lab stage times in, silence out, played via Web Audio 02 price Minute Math your rates and volumes in, cost per call and month out 03 test Script Desk call description in, script, caller lines, triage out 04 launch Guides go-live checklist, ticked off in your browser
- Hear the silence in Latency Lab: set each stage of a turn and play the gap through Web Audio.
- Price the minute in Minute Math: enter your own rates and volumes, compare scenarios.
- Test the script in Script Desk: write the script, generate messy callers, triage failed calls.
- Go live with the checklist in Guides.
Plans and roadmap
Early access
Free. Every tool is open, with no sign-up and no card. Settings and scenarios are saved in your browser.
Pro
Saved projects and team sharing for groups shipping phone agents. Planned, not available yet; join early access to hear when it opens.
Sponsored integration guides
Guides from voice infrastructure vendors, clearly marked as sponsored. Planned, not available yet.
# roadmap now all four tools, free in early access next saved projects and shareable scenarios later team workspaces
Ready to try it? Join early access at the top of this page.