Business Phone Systems · reliability comparison
Aircall vs Quo (formerly OpenPhone): which is more reliable? (2026)
Quo (formerly OpenPhone) is more reliable than Aircall, scoring 83.4 vs 59.6 out of 100. Over the last 90 days Aircall reported 17 incidents and Quo (formerly OpenPhone) reported 9, with effective uptime of 99.30% and 99.83% respectively. Quo (formerly OpenPhone) resolves incidents faster on average (1h 12m).
Data updated Nov 1, 2026 · How we score
| Metric | Aircall | Quo (formerly OpenPhone) |
|---|---|---|
| Reliability score | 59.6 | 83.4 |
| Rank (business phone systems) | #12 | #5 |
| Uptime (90 days) | 99.30% | 99.83% |
| Incidents (90 days) | 17 | 9 |
| Partial / major outages | 6 | 4 |
| Avg time to resolve | 4h 25m | 1h 12m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Aircall and Quo (formerly OpenPhone) differ
- Aircall reported 89% more incidents than Quo (formerly OpenPhone) over the last 90 days (17 vs 9).
- Aircall had 6 partial or major outages, compared with 4 for Quo (formerly OpenPhone).
- Quo (formerly OpenPhone) fixes problems faster: 1h 12m on average, against 4h 25m for Aircall (3.7× quicker).
- Aircall's longest outage on record lasted 8h 46m (Jun 19, 2026); Quo (formerly OpenPhone)'s lasted 3d (Jul 24, 2026).
90-day uptime
Aircall
Quo (formerly OpenPhone)
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Aircall incidents
- Partial outageOct 29, 2026 · resolved in 2h 32m
Increased Platform Errorsofficial update ↗
Affected: Inbound Calls, Conversation Center, Aircall Workspace (Web), Outbound Calls, Aircall Workspace (Desktop), Analytics +5 more
- Degraded performanceOct 17, 2026 · resolved in 1h 34m
Users with connectivity issues
Affected: Aircall Workspace (Web), Aircall Workspace (Desktop), Aircall Mobile App (iOS), Aircall Mobile App (Android), Aircall Chrome Extension
- Partial outageOct 13, 2026 · resolved in 41m
Affected: Inbound Calls, Conversation Center, Aircall Workspace (Web), Outbound Calls, Aircall Workspace (Desktop), Analytics +1 more
- Partial outageOct 12, 2026 · resolved in 49m
Affected: Inbound Calls, Outbound Calls
- Degraded performanceOct 7, 2026 · resolved in 1d 3h
Partner Integrations Not Receiving Call Events
Affected: Other Integrations
- Degraded performanceOct 5, 2026 · resolved in 1h 1m
Intermittent calls and SMS failures on a subset of French and Spanish numbers
Affected: Inbound Calls, Inbound Messaging (SMS/MMS), Outbound Calls, Outbound Messaging (SMS/MMS), eSIM
Recent Quo (formerly OpenPhone) incidents
- Degraded performanceOct 17, 2026 · resolved in 37m
Elevated calling errors within the APAC region
Affected: Calling
- InformationalOct 15, 2026 · resolved in 10d 20h
- Degraded performanceOct 14, 2026 · resolved in 1h 11m
Affected: Text Messaging
- Major outageOct 1, 2026 · resolved in 53m
Calling Outageofficial update ↗
Affected: Calling
- Degraded performanceSep 27, 2026 · resolved in 2h 5m
Affected: Android App, Mac App, IOS App, Website
- InformationalSep 17, 2026 · resolved in 6d 18h
Other business phone systems to consider
- Grasshopper · #1 · 99.96% uptime
- JustCall · #2 · 99.96% uptime
- CloudTalk · #3 · 99.91% uptime
- GoTo Connect · #4 · 99.87% uptime