4.7/5Top rated on G2

The phone system that fits your stack and your API

Allo runs on an MCP and API, so your AI and tools can place and handle calls. Click-to-dial from your CRM, cover customers worldwide and let the AI answer inbound trials.

On the line0:12
PNPriya NairTrial question · integrationInbound trial
Quick one, does your API support webhooks on our plan?Yes, webhooks are on every plan. I've booked a call with the team to walk you through setup.
Answered and synced to your CRM

A day on your line

The calls a software team can't afford to fumble, handled while you ship.

  1. 10:05Inbound trial

    A trial question mid-sprint

    A prospect on a trial calls with an integration question while the team is heads-down shipping.

    The AI receptionist answers, qualifies the lead and books a call with the team.
  2. 14:20Global customer

    A customer calls from abroad

    A customer in another country calls your support line about their rollout.

    One number covers them worldwide, so the call connects without a second line.
  3. 16:45MCP

    A call your tools handle

    An outbound follow-up needs to go out while the team is in review.

    Your AI runs the call through the MCP and API, then logs the result.
  4. 18:30After the call

    Every call, on the record

    A discovery call wraps and the notes need to reach the CRM before anyone forgets.

    Allo records, summarizes and syncs the call to your CRM automatically.

Built to fit a software team's stack

One phone system your AI, your CRM and your tools can all reach.

An MCP and API so your AI and tools can run calls

Allo exposes an MCP and a full API, so your agents and internal tools can place, answer and act on calls in code.

Click-to-dial from your CRM

Call any contact in one click from the CRM your team already lives in, with the context right there on screen.

International calling for global customers

Reach customers in 192 destinations on one number, so a worldwide user base never means a wall of local lines.

An AI receptionist for inbound trials and support

It answers in your product's voice, qualifies trial questions and routes or books the right call, around the clock.

Every call recorded and summarized to your CRM

Recordings and summaries sync to your CRM automatically, so the whole team sees what was said without taking notes.

Call analytics for your team

See volume, response times and outcomes across the team, so you know what's working before you scale it.

Fits your stack

NotionGoogle-SheetsGoogle-ContactsClaapZapierMake
We wanted a phone system our AI and tools could actually drive. Allo runs on an MCP and API, and every call lands in the CRM without anyone touching it.
Founder · Seed-stage SaaS
192

destinations you can call on one number

100%

of calls logged and summarized to your CRM

1

number for a worldwide customer base

8 sec

average text-back on a missed call

Questions software teams ask

Yes. Allo ships a full API and an MCP, so your AI agents and internal tools can place calls, read transcripts and act on results in code.

Yes. Call any contact in one click from your CRM, with the call context on screen, and every call syncs back automatically.

You can call 192 destinations on a single number, so a global customer base doesn't mean managing a separate line per country.

The AI receptionist answers around the clock, qualifies trial and support questions, and books or routes the call, then syncs it to your CRM.

You can port your current numbers to Allo in a couple of days, or start with new ones. The same lines then ring across every device.