> For the complete documentation index, see [llms.txt](https://library.zoom.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://library.zoom.com/zoom-workplace/zoom-phone/expert-insights/emergency-services-best-practices/u.s.-canada-pidf-lo-address-delivery.md). # U.S./Canada—PIDF-LO Address Delivery In the U.S.and Canada, when Zoom services handle emergency calls, the detected address is embedded directly in the call signaling using the PIDF-LO protocol. This is independent of the caller ID. **U.S./Canada Flow:** User dials 911 **→** Zoom detects location via network data **→** Dispatchable address is embedded in the call via PIDF-LO **→** PSAP receives the address directly: no database lookup needed. #### Key Benefits * **No ELINs needed** — address travels in the call signal, not tied to a phone number * **Real-time address updates** — users and admins can update addresses via the Zoom portal; no carrier database update required * **Extension-only users fully supported** — they use the Emergency Number Pool for caller ID, but their detected dispatchable address is still sent directly via PIDF-LO * **Personal locations are unlimited** — remote workers can create as many as needed, activated in near-real time #### BYOC Customers in U.S./Canada If you use BYOC for day-to-day calls, Zoom will provide the emergency call routing (no extra cost). This is strongly recommended as it provides all the PIDF-LO benefits described above. Regular calls continue through the BYOC carrier; only emergency calls route via Zoom. #### Fallback When No Location Match (U.S./Canada) If no network match is found and the device has no GPS: * If the user has previously confirmed a personal address, that address is reported * Otherwise, the location is reported as "Unknown" and the call routes to a nationwide clearinghouse that verbally confirms the caller's location before connecting to the correct PSAP. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://library.zoom.com/zoom-workplace/zoom-phone/expert-insights/emergency-services-best-practices/u.s.-canada-pidf-lo-address-delivery.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.