BETACallu: Incident response, on your own infra.
Callu is a single-tenant incident management and on-call platform. Alerts come in through webhooks, the right person gets paged — by phone if that is what it takes — and incident data never leaves your own infrastructure. No per-seat fees.

// HIGHLIGHTS
From alert to the right human
Per-service webhooks, priority-ordered rules and escalation policies that page users, schedules or whole teams.
Timezone-aware on-call
DST-safe rotations in each schedule’s own timezone, with overrides and secondary on-call.
Every channel included
Email, SMS, voice and push, plus Slack, Teams and webhooks — voice paging is not a premium tier.
Built to be audited
Role-based access with a read-only Auditor, and a tamper-evident audit trail you can verify, export and forward.
// AT A GLANCE
- Status
- Beta
- License
- MIT, open source
- Deployment
- One Docker Compose stack per organization
- Stack
- .NET 10, PostgreSQL
- Languages
- English, Turkish