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The Layer 0 Bridge for Voice AI

Bring Your Own Agent. Bring Your Own Carrier. We provide the ultra-low latency bridge.

Stop Losing Users to Lag

The "awkward pause" kills voice conversations. Your user asks a question. There's half a second where nothing happens. They start talking again. Now you have two streams of audio trying to sync. The agent sounds confused.

Telepath eliminates that pause. Our adaptive clean signal protocols and optimized packet routing shave roughly 400ms off standard carrier integrations. Your agent feels present, not processed.

But latency isn't just about mid-conversation turns. The first impression matters most—when the user picks up and expects an instant response. Our persistent connection architecture establishes sessions 2.9x faster and delivers the first AI response 6.6x faster than direct carrier integrations. See the data →

We consistently beat industry benchmarks. See why standard SIP stacks can't compete.

Metric to Live By: less than 300ms latency, end-to-end

Latency Breakdown: Standard vs Telepath

Stage Standard Stack Telepath Stack Savings
Physics (Round-trip signal) 50ms 50ms
VAD ("Did they stop?") ~800ms 300ms ~400ms
Processing (Routing, Buffering) 100ms < 1ms ~50ms
AI Turn (Thinking + TTS) Variable Variable
TOTAL ~950ms+ ~350ms+ ~450ms saved

Key insight: Telepath's Clean Signal Protocol adaptively handles breaks in the user's speech. This enables Telepath to help route calls from carriers to AI Voice Agents while working in conjunction with VAD, not in opposition to it. Standard gateways pass background noise that confuses AI VADs, adding ~400ms of hesitation.

Real-World Test Results

In a controlled A/B test (us-east-1), Telepath achieved even better results than the theoretical model:

Metric Direct Carrier Telepath Improvement
Session Establishment 1,812 ms 622 ms 2.9x faster
First Turn Latency 829 ms 124 ms 6.6x faster

These results are from our controlled A/B test with geographic parity. See the full Case Study →

Keep Your Minutes. Upgrade Your Intelligence

You probably already have a SIP trunk with Twilio, Telnyx, or Bandwidth. Switching carriers is a nightmare. Port your numbers, renegotiate contracts, update routing tables everywhere. You don't have time for that.

Telepath acts as the high-speed bridge between your existing carrier and your AI logic. No porting numbers. No contract breaking. No rip-and-replace.

You keep your carrier relationship, your pricing, your stability. You just get better performance on top.

Full Control Via API

We don't hide the SIP headers. Need to pass a custom X-Customer-ID from the PSTN directly to your LLM context? We pass it through. Need to fork audio for a "Manager Listen-In" mode? One API call. Need to implement custom VAD logic? You have full access to the audio stream.

This is infrastructure. Get out of the way and let us handle the hard parts while you handle the smart parts.

Who This Is For

You're a founder or PM at an AI startup building voice agents. You're not interested in telecom. You're interested in shipping. You need a SIP bridge that doesn't become a six-month engineering project.

How It Works

One API call. That's it.

// Create a Telepath Connection
{
  "sip_username": "your-telepath-sip-trunk",
  "provider_numbers": "+12135551212, +12135551213...",
  "provider": "elevenlabs",
  "provider_credential": "sk-...",
  "webhook_url": "https://api.yourapp.com/webhooks"
}

Three steps to go live:

  1. Create a Connection — Log in to the Telepath Dashboard. Enter your SIP username and AI provider keys.
  2. Point Your Carrier — Copy your Telepath SIP URI. Paste it into your carrier's Origination URI field. No porting. No contracts.
  3. Make a Test Call — Call your number. Watch the telemetry flow in real-time.

Ready to Build?

Stop worrying about the network stack. Start shipping voice AI that doesn't sound robotic.