Quo

What it does

Quo, formerly OpenPhone, is a business phone system that runs as an app. You get business numbers that several people can share, calling and texting from phone, desktop or browser, voicemail, call routing and a shared inbox where every conversation with a customer sits in one thread.

It adds an AI agent called Sona that answers when your team cannot, call analytics and oversight, a light contact list with tasks, and an API and MCP server for connecting it to other tools.

Why you would need it

Business phone calls are where customer detail goes missing. A rep takes a call on a personal mobile, nobody writes it down, and a colleague calls the same person the next day without knowing what was said. You feel it when a lead goes cold after hours or when you cannot answer "who spoke to this customer last?".

A shared number and inbox fix that. Everyone sees the same calls, texts and notes, and the CRM sync means the record lands on the contact without anyone typing it in.

Where it fits

Quo sits between your customers and your CRM. Calls and texts come in, and the details go out to HubSpot, Salesforce, Pipedrive, Attio and other tools through integrations. Slack, Zapier and Make connect it to the rest of the stack.

It replaces a desk phone system or a mix of personal numbers and a separate texting app. It sits beside call recording and conversation tools such as Gong or Fireflies, which Quo also integrates with.

What stands out

• Shared numbers and a shared inbox, so the whole team sees each customer's calls and texts.
• Sona, an AI agent that answers calls and texts when nobody is free.
• A hosted MCP server and an official Claude and ChatGPT connector, so an assistant can read conversations, create contacts and manage tasks.
• A documented API with webhooks for messages, calls, call summaries and call transcripts.

My take

Quo is a good fit if your team talks to customers by phone and text and you want that history in one place without buying a call centre product. The CRM sync is the strongest reason to buy it.

What I would watch is how much of the AI you rely on. An AI agent answering your phone is a policy choice as much as a feature, so test what it says on real calls before you trust it. Texting in the US also needs carrier registration, which adds some setup.

Verdict

Pick Quo if you are a small or mid-sized team that wants shared numbers, texting and automatic call logging in your CRM. Skip it if you need a full contact centre with queues and workforce tools. Aircall is the more call-centre style alternative.