Business Phone Systems · reliability comparison
CloudTalk vs Quo (formerly OpenPhone): which is more reliable? (2026)
CloudTalk is more reliable than Quo (formerly OpenPhone), scoring 89.6 vs 83.4 out of 100. Over the last 90 days CloudTalk reported 2 incidents and Quo (formerly OpenPhone) reported 9, with effective uptime of 99.91% and 99.83% respectively. Quo (formerly OpenPhone) resolves incidents faster on average (1h 12m).
Data updated Nov 1, 2026 · How we score
VS
| Metric | CloudTalk | Quo (formerly OpenPhone) |
|---|---|---|
| Reliability score | 89.6 | 83.4 |
| Rank (business phone systems) | #3 | #5 |
| Uptime (90 days) | 99.91% | 99.83% |
| Incidents (90 days) | 2 | 9 |
| Partial / major outages | 1 | 4 |
| Avg time to resolve | 3h 33m | 1h 12m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where CloudTalk and Quo (formerly OpenPhone) differ
- Quo (formerly OpenPhone) reported 4.5× as many incidents as CloudTalk over the last 90 days (9 vs 2).
- Quo (formerly OpenPhone) had 4 partial or major outages, compared with 1 for CloudTalk.
- Quo (formerly OpenPhone) fixes problems faster: 1h 12m on average, against 3h 33m for CloudTalk (2.9× quicker).
- CloudTalk's longest outage on record lasted 1d 20h (Nov 10, 2025); Quo (formerly OpenPhone)'s lasted 3d (Jul 24, 2026).
90-day uptime
CloudTalk
Quo (formerly OpenPhone)
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent CloudTalk incidents
- Partial outageOct 13, 2026 · resolved in 3h 33m
- MaintenanceAug 28, 2026 · ongoing
Scheduled database upgrade of contacts
Affected: Mobile Application, Desktop Application, Analytics, Messaging, CloudTalk Dialer, CloudTalk Dashboard +1 more
- InformationalAug 17, 2026 · resolved in 1h 21m
Recent Quo (formerly OpenPhone) incidents
- Degraded performanceOct 17, 2026 · resolved in 37m
- InformationalOct 15, 2026 · resolved in 10d 20h
- Degraded performanceOct 14, 2026 · resolved in 1h 11m
- Major outageOct 1, 2026 · resolved in 53m
- Degraded performanceSep 27, 2026 · resolved in 2h 5m
- InformationalSep 17, 2026 · resolved in 6d 18h
Other business phone systems to consider
- Grasshopper · #1 · 99.96% uptime
- JustCall · #2 · 99.96% uptime
- GoTo Connect · #4 · 99.87% uptime
- net2phone · #6 · 99.89% uptime