OpenPhone is a cloud-based business phone system built for startups and small-to-medium businesses. It lets teams make and receive calls, send SMS and MMS messages, and manage shared inboxes from a single app — without the complexity of traditional enterprise phone systems.
The platform built its reputation by making business telephony feel more like a modern consumer messaging app: intuitive, fast to set up, and collaborative by design.
For lean teams that need a shared phone number, basic CRM integrations, and a clean interface, OpenPhone quickly became a go-to choice.
Note: As of September 2025, OpenPhone officially rebranded to Quo. All references to OpenPhone in this review relate to the same platform now operating under the Quo name. Throughout this page, we use both names interchangeably to reflect how users are still searching for the product.
Why Did OpenPhone Rebrand to Quo?
The rebrand from OpenPhone to Quo in September 2025 was not a cosmetic change — it signalled a fundamental strategic shift in how the company defines itself.
Originally founded in 2018 as a lightweight, affordable VoIP solution for solo founders and lean startups, OpenPhone grew steadily through Y Combinator and multiple funding rounds.
By late 2025, the company had raised a $105 million growth financing round led by General Catalyst, bringing its total capital raised to approximately $161 million. That level of investment demanded a product vision beyond a simple business phone number.
The Quo rebrand reflects a repositioning into what the company calls the “AI-driven front office” category. The platform is no longer just a phone system — it now includes Sona, a 24/7 autonomous AI voice agent capable of handling lead intake, answering FAQs, qualifying prospects, and sending follow-up SMS mid-call.
Simultaneously, the company launched integrations with Pipedrive, Zoho CRM, and Anthropic’s Claude LLM to deepen its role in sales and support workflows.
In short: OpenPhone became Quo because a phone number was no longer the point. The platform’s new ambition is to act as an AI-native communication layer across the entire customer-facing front office.
For buyers, this matters because the product you evaluated six months ago as “OpenPhone” may look and price quite differently today as Quo — and its competitive positioning has shifted accordingly.
What Are OpenPhone’s Key Features?
Shared phone numbers with unified team inbox for calls, texts, and voicemails
SMS and MMS messaging with group threads and internal discussion
Voicemail transcription and automated voicemail drop
Basic IVR and call routing with business hours configuration
Sona: 24/7 autonomous AI voice agent for lead intake and FAQ handling
Call recording with AI-generated summaries and full transcripts
CRM integrations with HubSpot, Salesforce, Pipedrive, and Zoho
Based on 400+ verified reviews from G2, Capterra, and Trustpilot
😊 What Do Users Love About OpenPhone?
Simple, fast setup — most teams are live within minutes, no IT support required
Clean, consumer-grade interface that makes the phone system feel like a messaging app
Shared inboxes and internal threads make team collaboration genuinely seamless
Native SMS and MMS with group threading outperforms legacy VoIP tools
Sona’s AI agent handles after-hours lead intake without additional staffing
“I’m very happy with Quo. I upgraded from my landline and was able to port over my existing number, which made the switch easy. Now I can take calls and send texts from my cell, and since most people (including me) would rather text than call, that has been a real game changer for me.”
No power dialer or parallel dialer — outbound throughput is severely limited for high-volume teams
Call quality degrades noticeably on unstable Wi-Fi connections, with audio drops reported frequently
Live phone support is only available on higher tiers; Starter and Business users are limited to email tickets
Number porting can take up to 2–4 weeks for landlines and involves a non-self-service CSR request process
AI credit system for Sona adds unpredictable costs at scale — 1,000 free credits covers only approximately 10 calls
No whisper or barge-in coaching tools, making it unsuitable for managers who need to monitor or assist live calls
“Multiple and frequent connection problems, calls dropped, lines not working, ineffective customer service which takes 2-4 days to respond. Misleading pricing, hidden fees. Go somewhere else.”
What Are People Saying About OpenPhone (Quo) on G2?
See what real users are saying about OpenPhone on G2 — honest reviews, real experiences, and feedback from teams who have used it.
“ There are too many bugs to name. Scheduled messages not sending, the time zone stuck in Arizona, so you have to change it for every message. Days to weeks before you hear back from customer support (and you always get a new person, so it feels like you are starting over.) Duplicate messages. All contacts dissappearing. Need I continue?
Zoey J.Small BusinessIT & Ops
“ Constant bugs on a weekly basis. Bad experience overall. Waiting for a new solution to come out on the market to migrate over.
Jace P.Small BusinessIT & Ops
Founder
“ I travel a lot, and that's why it was important to have a VOIP. However, I will say that a lot of my calls dropped, disconnected, or never made it through while traveling in multiple countries. I emailed the company, for about a year, trying to figure out what was going on.
Consistently rated highly on G2, CloudTalk helps teams ramp faster, avoid complexity, and rely on a phone system that works as expected from day one.
100+ integrations
Your CRM, helpdesk, and sales tools already talk to each other. CloudTalk just joins the conversation and makes it way more productive.
Coverage in 160+ countries
From next door to across the globe, CloudTalk keeps your calls clear, local, and ready to grow with your business.
CloudTalk vs OpenPhone: Side-by-Side
See how CloudTalk delivers superior performance where it matters most
OpenPhone (Quo)
CloudTalk
Call Quallity
App-based calling that relies entirely on the user's internet connection. Documented audio instability and call drops on unstable Wi-Fi, particularly in home office or shared network environments.
Crystal-clear call quality backed by a multi-carrier infrastructure with built-in redundancy, delivering consistent audio performance regardless of environment.
International Coverage
US and Canadian numbers only. International calling is available but billed per minute with no local number options outside North America. Number spam management is entirely manual.
Local numbers in 160+ countries with automated number rotation and built-in spam prevention — no manual intervention required. Purpose-built for teams scaling internationally.
Analytics & Reporting
Basic call logs and activity summaries. Meaningful analytics and reporting are limited or unavailable on entry-level plans, and there is no agent performance scoring or campaign-level reporting.
Comprehensive analytics and reporting across all calls — including agent performance dashboards, call monitoring, sentiment analysis, and AI-generated conversation intelligence — available at scale.
Integrations
Integrations with HubSpot, Salesforce, Pipedrive, and Zoho. Sync reliability improves on higher tiers, but users on Starter plans have no CRM integration access at all.
Seamless, real-time bi-directional sync with HubSpot, Salesforce, Zendesk, Pipedrive, and 100+ other tools. Every call logged, every ticket created — automatically, across all plan tiers.
Call Quallity
OpenPhone (Quo): App-based calling that relies entirely on the user's internet connection. Documented audio instability and call drops on unstable Wi-Fi, particularly in home office or shared network environments.
CloudTalk: Crystal-clear call quality backed by a multi-carrier infrastructure with built-in redundancy, delivering consistent audio performance regardless of environment.
International Coverage
OpenPhone (Quo): US and Canadian numbers only. International calling is available but billed per minute with no local number options outside North America. Number spam management is entirely manual.
CloudTalk: Local numbers in 160+ countries with automated number rotation and built-in spam prevention — no manual intervention required. Purpose-built for teams scaling internationally.
Analytics & Reporting
OpenPhone (Quo): Basic call logs and activity summaries. Meaningful analytics and reporting are limited or unavailable on entry-level plans, and there is no agent performance scoring or campaign-level reporting.
CloudTalk: Comprehensive analytics and reporting across all calls — including agent performance dashboards, call monitoring, sentiment analysis, and AI-generated conversation intelligence — available at scale.
Integrations
OpenPhone (Quo): Integrations with HubSpot, Salesforce, Pipedrive, and Zoho. Sync reliability improves on higher tiers, but users on Starter plans have no CRM integration access at all.
CloudTalk: Seamless, real-time bi-directional sync with HubSpot, Salesforce, Zendesk, Pipedrive, and 100+ other tools. Every call logged, every ticket created — automatically, across all plan tiers.
Why Choose CloudTalk Over OpenPhone (Quo)?
CloudTalk delivers better, more accurate performance during every call
AI Voice Agents That Work 24/7
AI Voice Agents handle inbound calls 24/7 and answer FAQs, qualify leads, collect information, and route to the right team when a human is needed.
Beyond transcribing and summarising, CloudTalk’s AI Conversation Intelligence analyses sentiment, scores agent performance, and pushes enriched data directly to your CRM — across every single call, not just the ones you flag.
High-Performance Call Flows in Seconds
Build sophisticated routing logic with a drag-and-drop Call Flow Designer that connects 20+ conditions — including skills-based routing, VIP queue priority, and overflow logic. OpenPhone’s routing is linear and lacks the flexibility mid-market teams need as call volume grows.
Global Numbers with Built-In Reputation
Access international numbers in 160+ countries with automated number rotation that prevents spam flagging — at no additional cost per seat. STIR/SHAKEN compliance and branded caller ID are included, so your team’s calls arrive looking legitimate — without a separate ARMOR® invoice.
Your Entire Team Live in a Single Day
Easy, fast setup without outside tech help means you can go live in an afternoon. Your CRM integrations and call flows are configured in hours, moving your entire team into action in a single day.
Businesses That Switched to CloudTalk
Real results from real companies that made the move—and never looked back.
“Thanks to CloudTalk, we managed to greatly improve our team’s cost and efficiency. The script feature allows us to lead the calls in a much more systematic way, as well as all the action buttons to trigger actions directly into our backend.”
Yohann Bensadoun
Global Supply Groowth at Glovo
82%Increase in the volume of calls
24%Decrease in missed calls
“Before CloudTalk, people weren’t answering as much. But then, we saw roughly a 2–3x improvement in call efficiency and booking rate after switching to CloudTalk.”
Prince Zerihun
SDR at Kourse
2xImprovement in pickup rate
3xMore meetings booked per call
“We were stuck at a 20–30% pickup rate with Aircall. With CloudTalk, we’ve hit 40–50%. That’s made all the difference.”
Syon Joshi
Chief Marketing Office at Velu
50%Pickup rates
FullVisibility into reps performance
Frequently Asked Questions About OpenPhone (Quo) and CloudTalk
Yes. OpenPhone officially rebranded to Quo in September 2025. The platform is the same product under a new name, reflecting the company’s strategic shift toward AI-native front-office communication. Users searching for “OpenPhone” will find the product now operates at quo.com.
Quo (formerly OpenPhone) is a cloud-based business phone system designed for startups and SMBs. It offers shared phone numbers, SMS/MMS messaging, basic call routing, CRM integrations, and an AI voice agent called Sona for 24/7 lead intake and call handling.
OpenPhone rebranded to Quo following a $105 million growth financing round in September 2025. The rebrand signals a strategic expansion beyond business telephony into what the company calls the “AI-driven front office” — a platform that uses autonomous AI agents to manage sales and support interactions, not just route calls.
Quo offers three main tiers: Starter at $15/user/month (billed annually), Business at $23/user/month, and Scale at $35/user/month. An Enterprise tier is available on custom pricing. Note that CRM integrations are not included on the Starter plan, and Sona’s AI agent operates on a separate credit-based pricing model. For a full breakdown, see our OpenPhone pricing guide.
OpenPhone is best suited to small, North American teams that prioritise ease of use and modern messaging. CloudTalk is the stronger choice for teams that need outbound dialling automation, international coverage, advanced analytics, and manager-level coaching tools. See our full OpenPhone vs CloudTalk comparison for a detailed breakdown.
Quo offers HIPAA-compliant voice and voicemail handling on its Business and Scale plans, with a Business Associate Agreement (BAA) available. However, standard SMS/MMS is not covered under the BAA due to carrier-level encryption limitations. Teams in healthcare should evaluate this carefully before relying on Quo for sensitive communications.
No. OpenPhone (Quo) does not offer a power dialer, parallel dialer, or any outbound dialling automation. Reps must manually click each number. This is one of the most significant limitations cited by sales teams that outgrow the platform. CloudTalk offers a full suite of dialling solutions including Power Dialer, Smart Dialer, and Parallel Dialer.
Still have questions?
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