Configuring E911 Emergency Outbound Routes and Caller ID Overrides in FreePBX
by Provider Adminlast verified 2026-08-13
Overview
This guide demonstrates how to configure compliant E911 emergency outbound routes and caller ID overrides in FreePBX. You will learn how the FreePBX Caller ID hierarchy operates during emergency calls, how to assign location-specific emergency CIDs to extensions, and how to set up internal emergency notifications. Implementing these configurations ensures compliance with Kari's Law and the RAY BAUM'S Act.
Key takeaways
- Understand the FreePBX Caller ID hierarchy and how Emergency Routes alter CID processing.
- Configure dedicated Emergency Outbound Routes with non-blocking dial patterns for 911 and 933.
- Assign location-specific Emergency Caller ID strings to extensions for multi-tenant or multi-building setups.
- Set up internal notifications (Kari's Law compliance) via email alerts and notification groups.
- Safely test E911 functionality using automated 933 test services without dispatching emergency services.
Prerequisites
- Administrative access to FreePBX 16 or 17 web interface.
- A SIP trunking provider supporting E911 address registration (e.g., Bandwidth, Flowroute, Telnyx).
- Pre-registered physical addresses and associated E911 Caller ID numbers with your carrier.
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