Business Phone Systems · reliability comparison
Quo (formerly OpenPhone) vs RingCentral: which is more reliable? (2026)
Quo (formerly OpenPhone) is more reliable than RingCentral, scoring 83.4 vs 79.3 out of 100. Over the last 90 days Quo (formerly OpenPhone) reported 9 incidents and RingCentral reported 16, with effective uptime of 99.83% and 99.98% respectively.
Data updated Nov 2, 2026 · How we score
| Metric | Quo (formerly OpenPhone) | RingCentral |
|---|---|---|
| Reliability score | 83.4 | 79.3 |
| Rank (business phone systems) | #5 | #8 |
| Uptime (90 days) | 99.83% | 99.98% |
| Incidents (90 days) | 9 | 16 |
| Partial / major outages | 4 | 1 |
| Avg time to resolve | 1h 12m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Quo (formerly OpenPhone) and RingCentral differ
- RingCentral reported 78% more incidents than Quo (formerly OpenPhone) over the last 90 days (16 vs 9).
- Quo (formerly OpenPhone) had 4 partial or major outages, compared with 1 for RingCentral.
90-day uptime
Quo (formerly OpenPhone)
RingCentral
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
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: Mac App, IOS App, Website, Android App
- InformationalSep 17, 2026 · resolved in 6d 18h
Recent RingCentral incidents
- Degraded performanceOct 23, 2026 · resolved (duration not published)
Phone: A portion of customers in the APAC region may be experiencing dead air on calls
Affected: Phone
- Degraded performanceOct 22, 2026 · resolved (duration not published)
Phone: A portion of customers in the APAC region may be experiencing dead air on calls
Affected: Phone
- Degraded performanceOct 13, 2026 · resolved (duration not published)
Phone: A portion of customers may be unable to add agents to existing call queues
Affected: Phone
- Degraded performanceOct 7, 2026 · resolved (duration not published)
Affected: Phone
- Degraded performanceSep 22, 2026 · resolved (duration not published)
Affected: Phone
- Degraded performanceSep 22, 2026 · resolved (duration not published)
Affected: Messaging
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