Business Phone Systems · reliability comparison
Grasshopper vs JustCall: which is more reliable? (2026)
Grasshopper and JustCall are effectively tied on reliability (94.6 vs 93.4). Over the last 90 days Grasshopper reported 1 incident and JustCall reported 4, with effective uptime of 99.96% and 99.96% respectively. JustCall resolves incidents faster on average (1h 18m).
Data updated Nov 1, 2026 · How we score
| Metric | Grasshopper | JustCall |
|---|---|---|
| Reliability score | 94.6 | 93.4 |
| Rank (business phone systems) | #1 | #2 |
| Uptime (90 days) | 99.96% | 99.96% |
| Incidents (90 days) | 1 | 4 |
| Partial / major outages | 1 | 0 |
| Avg time to resolve | 1h 31m | 1h 18m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Grasshopper and JustCall differ
- JustCall reported 4× as many incidents as Grasshopper over the last 90 days (4 vs 1).
- Grasshopper had 1 partial or major outage, compared with 0 for JustCall.
- JustCall fixes problems faster: 1h 18m on average, against 1h 31m for Grasshopper.
- Grasshopper's longest outage on record lasted 23h 54m (Jan 22, 2026); JustCall's lasted 12m (Mar 9, 2026).
90-day uptime
Grasshopper
JustCall
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Grasshopper incidents
- Partial outageAug 15, 2026 · resolved in 1h 31m
Grasshopper - password reset and OTP emails blocked
Affected: Grasshopper
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
Other business phone systems to consider
- CloudTalk · #3 · 99.91% uptime
- GoTo Connect · #4 · 99.87% uptime
- Quo (formerly OpenPhone) · #5 · 99.83% uptime
- net2phone · #6 · 99.89% uptime