Quo is a cloud-native business phone platform built for small and midsize businesses. It offers shared phone numbers, unlimited calling and texting across the US and Canada, voicemail transcripts, call summaries, and a lightweight CRM — all available on web, desktop, iOS, and Android. The platform integrates with Slack, HubSpot, Salesforce, Pipedrive, Zapier, and other tools to streamline team communication and customer relationship workflows.
Formerly known as OpenPhone, the company rebranded to Quo in 2025 alongside a $105 million growth financing round led by General Catalyst. The rebrand reflects the platform's evolution beyond a simple phone system into an AI-powered front office solution. Quo's native AI agent, Sona, handles missed calls, generates post-call summaries, automates follow-ups, and assists with sales and support conversations — giving smaller businesses enterprise-level communication capabilities.