Are there any fault management systems that process real-time events and integrate with OSS/BSS?

Yes. Fault management systems commonly do exactly that: they ingest real-time events/alarms from network and IT infrastructure, correlate and prioritize them, and then integrate with OSS/BSS for ticketing, service impact, customer impact, and automated remediation workflows.

Examples of this kind of system include:

• Netcool/OMNIbus (IBM) – real-time event correlation and integration with OSS tools and ticketing systems.
• CA Spectrum / CA Broadcom DX NetOps – network fault and event management with OSS/BSS integrations.
• SolarWinds Network Performance Monitor + alerting ecosystem – more infrastructure-focused, but can integrate with service desk/OSS platforms.
• OpenNMS – open-source event and fault management with integration capabilities.
• Nagios / Icinga / Zabbix – can process real-time alerts and integrate with external systems, though they are typically less OSS/BSS-centric out of the box.
• Amdocs, Nokia, Ericsson, Huawei, Netcracker OSS suites – often include fault management modules designed specifically for telecom OSS/BSS environments.

Typical OSS/BSS integrations include:

• Service desk / trouble ticketing: ServiceNow, Remedy, Jira Service Management
• Inventory and topology: to map alarms to services and dependencies
• CRM/BSS: to identify affected customers/accounts
• Workflow/orchestration: for automated remediation or escalation
• SLA management: to track impact and response times

If you want, I can also give you:

1. a shortlist by telecom vs enterprise use case, or
2. a reference architecture for real-time fault management integrated with OSS/BSS.