A dispatchable location is the location information sent with a 911 call that lets emergency responders find the caller: a validated street address plus any extra detail needed to reach them, such as building, floor, suite or room number. The term comes from US emergency calling rules, which require many phone services, including business multi-line phone systems and VoIP services, to provide it, or an allowed alternative, with 911 calls. For organizations, it generally means the phone system needs to know where each phone or user is, not just which address is on the account.
At a glance
- A dispatchable location is a validated street address plus the floor, suite, room or similar detail responders need.
- In the US, FCC rules adopted under the RAY BAUM’S Act apply it to many 911-capable services, with details that vary by service and device.
- Fixed desk phones are usually mapped to a location once; phones and apps that move need automatic detection or user-confirmed locations.
- Organizations usually share responsibility with their provider for keeping location data accurate.
- Rules differ by state and by country, so confirm obligations with counsel or your provider.
What problem it solves
When someone calls 911 from a traditional home phone line, the phone company’s records tie the number to an address. Business phone systems break that link. A company may have hundreds of phones behind one main number, staff spread across floors and buildings, and people calling from laptops and mobile apps at home or on the road. If the 911 call carries only the company’s headquarters address, responders may go to the wrong building, or search a large building floor by floor.
Dispatchable location closes that gap by sending enough detail for responders to go straight to the caller. It works alongside Kari’s Law, which covers direct 911 dialing and on-site notification on multi-line telephone systems.
How it works
Validated address. The street address is checked against the authoritative address data used for 911 routing, so the call reaches the right emergency center and the address is one responders can find.
Additional detail. The system adds the information needed within that address: building name, floor, suite, room, or a zone in a warehouse or campus.
Fixed devices. For desk phones that stay put, administrators usually assign each phone or extension a location in the phone system, whether it is an on-premises PBX, a hosted PBX or a UCaaS platform. Moves and changes need to update those records.
Devices that move. For laptops, softphones and mobile apps, many systems detect location automatically from the network the device is on, such as the Wi-Fi access point, network switch port or IP subnet, mapped in advance to locations. Where that isn’t possible, such as at a home office, the user is often asked to register or confirm an address. US rules allow fallbacks when an automatic dispatchable location isn’t technically feasible, with requirements that vary by device type.
Delivery with the call. When a user dials 911, the system or its emergency calling provider sends the call and location toward the right emergency center, as part of E911 service.
When it matters for buyers
- When replacing or moving a phone system, since location mapping usually has to be rebuilt or migrated in the new platform.
- When opening, moving or reconfiguring offices, which changes addresses, floors and network mappings.
- When adopting softphones and mobile apps for hybrid or remote staff.
- When a compliance review or audit asks how the organization meets 911 rules.
- In large buildings, campuses, warehouses and hospitals, where an address alone is not enough.
Questions to ask vendors
- How does your platform determine dispatchable location for desk phones, softphones and mobile apps?
- Can it detect location automatically from our Wi-Fi, switches or subnets, and what do we need to configure?
- How are remote users prompted to register or confirm their location, and what happens if they don’t?
- Which emergency calling provider routes our 911 calls, and in which countries do you support location-based emergency calling?
- Who is responsible for entering and validating addresses and building details, and how are changes audited?
- How do you support on-site notification when someone calls 911?
- What documentation can you give us to show how the system meets 911 location requirements?
How it differs from E911
Enhanced 911 (E911) is the broader service that delivers a caller’s number and location to the emergency center along with the call. Dispatchable location is about the quality of that location: specific enough for responders to reach the caller, not just the right town or main address. A system can technically support E911 yet still send a location that is too vague in a large building. Meeting dispatchable location expectations means keeping detailed, accurate location data for every phone and user.
To see how cloud phone platforms handle emergency calling for office and remote users, visit our Unified Communications as a Service solution page.