Live Hotline

AI Assistant Over
Any Phone Line
— No App Required.

Instant voice AI available on demand. Dial in, talk,
and get answers in real time.

How It Works

Three steps. Zero friction.

Line Zero Mobile 11:48 AM
Choose Minutes
60min
$0.035 / min
◈
Line Zero
Hotline Connecting...
+1 (800) 555-ZERO
◈
AI RESPONDING
01

Choose Your Minutes

Select your desired call duration using the interactive pricing calculator below. Only pay for what you use.

02

Dial Line Zero

Call the hotline number from any registered device. Landlines, smartphones, or feature phones — all supported.

03

Talk Instantly

Speak naturally with our low-latency conversational AI. No menus. No waiting. Just answers.

Built for Real Conversations

Production-grade AI delivered over plain old telephone lines.

Ultra-Low Latency

Natural voice response with near-zero lag. Optimized for speed without sacrificing intelligence — the model tunes its depth to your question, so quick answers stay instant and complex ones get the reasoning they need.

Persistent Context

Remembers your preferences and past conversations. Every call picks up exactly where you left off.

Built-In Tools

Web search and deep research built right into the call. Ask about anything — Line Zero pulls live answers and thorough research on demand.

Simple, Transparent Pricing

An estimated $0.035 per minute — pay only for what you actually use. No subscriptions. No hidden fees.

$0.035 / min est. Pay only for what you actually use
min
10 min 500 min
Minutes selected 60 min
Rate $0.035 / min
Total $2.10
BUY CREDITS ($2.10)

You'll be redirected to Venmo to complete your purchase securely.

Have Questions?

Our team is here to help with any inquiries or support.

Contact Support