Line

A business phone
that runs itself

Every other business phone app buries you in settings. Ours is radically simple — because the AI does the operating, and you just talk when you want to.

One-tap takeoverTranscribed voicemail
Inbox
Reception AI is on the line

Answering & routing automatically

Take over
  • Maria Lopez
    Perfect, see you at 2!
  • (415) 555-0118
    Voicemail · 0:24
    1
  • Dev Patel
    Can I reschedule to Friday?
    2
No settings to configure

Simple isn't a missing feature. It's the whole point.

OpenPhone and Dialpad hide their complexity. We removed the need for it — by putting an AI agent in charge of the line.

Simple because the AI runs it

No IVR builders, no routing matrices, no call-queue settings. The AI agent handles triage and routing, so the app you touch is just calls, texts, and voicemail. The complexity didn't move — it disappeared.

The AI is the operator — you're optional

Your agent answers, replies, and books around the clock. The app shows you what it's doing in real time, and a single "Take over" hands you the line whenever you want to step in.

One number, every channel

Calls, texts, and transcribed voicemail for your whole team, on one business number. The same engine that powers our developer API — just wearing a face anyone can use.

The app and the API are the same product

Line is built on the SignalRoute developer platform — the same numbers, agents, and history. Use the app, the API, or both; it's one account either way.

Explore the Operator

Put your phone on autopilot

Get a business number, let the AI answer, and step in whenever you want. Live in minutes — no phone system, no setup calls.