Business Phone Systems · reliability comparison
JustCall vs RingCentral: which is more reliable? (2026)
JustCall is more reliable than RingCentral, scoring 93.4 vs 69.3 out of 100. Over the last 90 days JustCall reported 4 incidents and RingCentral reported 16, with effective uptime of 99.96% and 99.98% respectively.
Data updated Nov 2, 2026 · How we score
| Metric | JustCall | RingCentral |
|---|---|---|
| Reliability score | 93.4 | 69.3 |
| Rank (business phone systems) | #2 | #10 |
| Uptime (90 days) | 99.96% | 99.98% |
| Incidents (90 days) | 4 | 16 |
| Partial / major outages | 0 | 1 |
| Avg time to resolve | 1h 18m | — |
| Outages we detected | 0 | 1 |
| Transparency score | 100/100 | 50/100 |
Where JustCall and RingCentral differ
- RingCentral reported 4× as many incidents as JustCall over the last 90 days (16 vs 4).
- RingCentral had 1 partial or major outage, compared with 0 for JustCall.
- Our own probes detected 0 outages at JustCall and 1 at RingCentral, of which 0 and 0 respectively were acknowledged on their status pages.
90-day uptime
JustCall
RingCentral
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent JustCall incidents
- Degraded performanceOct 27, 2026 · resolved in 40m
Failures in incoming and outgoing calls
Affected: JustCall Dashboard, JustCall Live Dashboard
- Degraded performanceOct 22, 2026 · resolved in 39m
Affected: Outbound Calling, SMS Service, JustCall Dashboard, Contact sync with CRMs, help desks and other integrations, Inbound Calling, MMS Service +1 more
- Degraded performanceSep 1, 2026 · resolved in 29m
Partial Degradation of Calling, SalesDialer, and Inbound Call Services
Affected: Inbound Calling, Sales Dialer
- Degraded performanceAug 18, 2026 · resolved in 3h 23m
Slowness reported across platform
Affected: Outbound Calling, SMS Service, JustCall Dashboard, Inbound Calling, MMS Service, Sales Dialer
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
- CloudTalk · #3 · 99.91% uptime
- GoTo Connect · #4 · 99.87% uptime
- Quo (formerly OpenPhone) · #5 · 99.83% uptime