What is E911?

E911, short for Enhanced 911, is the U.S. emergency calling system that routes 911 calls to the correct local dispatch center (called a PSAP — Public Safety Answering Point) and provides the dispatcher with the caller's location. It's how 911 works correctly — the dispatcher answering your emergency call knows exactly where to send help.

Traditional landlines had E911 built in — the phone number was physically tied to an address, so the dispatcher saw your address automatically. VoIP and modern cloud phones break that assumption, which is why E911 configuration is now a thing you have to manage explicitly.

How E911 works on traditional phones

•Each landline number was provisioned at a fixed address

•The telephone company maintained an Automatic Location Identification (ALI) database mapping numbers to addresses

•When someone dialed 911, the carrier looked up the address and routed the call to the local PSAP, which saw the address on their screen

•The address displayed was reliable because the phone physically couldn't move

Why VoIP changes E911

VoIP phones can be anywhere. You can take your softphone from your office in Dallas to a hotel in Seattle and make calls from both places. This is normally a benefit — until you dial 911. If the dispatcher sees your Dallas office address while you're in Seattle, help goes to the wrong place.

To solve this, modern VoIP systems require you to register a current address for every device or user who can dial 911. That address is what the PSAP sees during an emergency call.

Kari's Law and RAY BAUM's Act

Two U.S. federal laws significantly tightened E911 requirements in 2020:

•Kari's Law requires that any multi-line phone system (like a business PBX) allow users to dial 911 directly without needing to press "9" first, and that 911 calls notify someone at the business (typically a front desk or security team)

•RAY BAUM's Act (Section 506) requires "dispatchable location" — meaning the PSAP must receive a location accurate enough to identify the specific floor and room in a multi-story building

Both apply to VoIP and cloud phone deployments. Non-compliance can result in FCC fines.

E911 and AI voice agents

AI voice agents typically don't originate 911 calls — they don't have a human user on the originating side. But their deployment can affect your E911 setup in two ways:

•If you forward your existing business number to an AI agent, 911 calls forwarded from your main line can end up at the AI, which should immediately route them back to a human or emergency path — or the AI should decline to handle emergency intents entirely

•If the AI originates outbound calls on behalf of your business, the originating numbers still need correct E911 records on file with the underlying carrier

At 365agents, our AI agents are explicitly configured to recognize emergency intents and route them appropriately. For our platform-provisioned numbers, we maintain E911 records for every number under our control.

Related concepts

•VoIP — the technology that made E911 configuration complex

•Call forwarding — the deployment pattern that interacts with E911

•PBX — Kari's Law applies to your PBX configuration

See it in action

The Receptionist Agent from 365agents is E911-aware and explicitly routes emergency calls away from the AI and to a live human or 911 service. If you're planning to port numbers or forward calls to our platform, our onboarding team will walk you through the E911 configuration needed for your specific setup.