When someone dials 911 on a 2-million square foot manufacturing floor, "The Main Building" isn't a location. A 911 dispatcher receiving a call from your facility needs to know more than your company's street address. They need to know which building, which floor, which production zone, which shift office — specific enough to dispatch the right response to the right place in the shortest possible time.
For corporate campuses with multiple headquarters buildings, and for manufacturing organizations with large, complex, multi-shift facilities, achieving that level of accuracy across a Cisco CUCM or Microsoft Teams phone system is a compliance and operational challenge most legacy E911 solutions weren't designed to solve.
Federal law now requires it. Kari's Law and Ray Baum's Act apply to every multi-line telephone system in your facilities — from the executive floor of your corporate HQ to the shift supervisor's desk on the production line.
9Line delivers room- and zone-level E911 compliance across every site in your organization, on the Cisco and Microsoft platforms you already run, at a cost that makes business sense.
What the Law Requires — and What's at Stake
Kari's Law
Every multi-line telephone system (MLTS) must allow any user to dial 911 directly without a prefix. It must also automatically notify a designated on-site contact the moment any 911 call is placed, from any device at any facility.
Ray Baum's Act
Every 911 call must include a dispatchable location — not a building address, but the specific floor, room, zone, or area where the caller is located.
The business risk
Beyond regulatory fines, the liability exposure for a manufacturing organization or large employer that cannot demonstrate compliant 911 infrastructure is significant — particularly in the event of a workplace emergency where delayed or misdirected response contributes to injury or loss of life.
Why Corporate Campuses and Manufacturing Facilities Face Unique E911 Challenges
Physical scale and zone complexity. A corporate headquarters campus may span multiple buildings, parking structures, and auxiliary facilities. A manufacturing facility may have production floors, warehouses, loading docks, administrative offices, break rooms, and outdoor areas.
Large, distributed workforces. Corporate campuses and manufacturing facilities often have thousands of employees spread across large physical footprints, working across multiple shifts.
Mixed device environments. Large enterprises typically run a mix of Cisco IP desk phones, Webex softphones on laptops, conference room devices, and shared-use phones in common areas.
Remote and hybrid corporate employees. Corporate staff frequently work from home or travel between facilities. Their 911 location changes constantly.
How 9Line Delivers Compliance
9Line tracks on-premises devices by MAC address, IP subnet, or Wi-Fi access point — mapping each device to the specific floor, room, or production zone. For Webex users on Cisco CUCM, 9Line leverages HELD automatic location switching. For Microsoft Teams users, 9Line integrates with Teams' Location Information Service. 9Line assigns DIDs dynamically at call time and releases them after 24 hours — eliminating standing inventory costs entirely. Every facility, every building, every zone is managed from a single 9Line cloud portal.
