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Implementing Phase 1 with OSPs

The State 911 Coordination Office, together with Comtech and NoaNet are holding weekly Teams meetings beginning May 14, through June 11, 2025. Meeting will begin at 1 p.m. PDT and run for 30 minutes.

These meetings are open to any and all carriers/originating service providers that have received the FCC Valid Request for Phase 1 document and wish to discuss Points of Interface, Assigned Agency, and impacted PSAPs.

Please follow this link to join a Teams Meeting or click the appropriate date below.

2025 Meeting Dates

May 21May 28June 4June 11


Supplemental Documents

FCC Phase 1 Valid Request Form (PDF)

ESInet-connected PSAPs with FCC PSAP ID (PDF)

2025 Letter of Agency and Carrier Notification (PDF)

2016 Letter of Agency and Carrier Notification (PDF)

Next Generation 911 Phase 1

Requires all callers be delivered using a digital MPLS network using the SIP protocol.

Since 2016, the State 911 Office has been coordinating with local PSAPs to ensure that the equipment used to answer 911 calls is NG911 compliant. As of 2022, every PSAP has installed and/or upgraded their equipment to accept i3-enabled messaging.

In 2021, the State 911 Office began combining each county’s GIS data and providing a single statewide geographic database used for 911 call routing (ECRF) and location validation (LVF).

WA is ready for NG911 and has several carriers already delivering calls using the SIP protocol.

Diagram visually explaining the process of originating service providers connecting to a 911 ESInet using digital SIP-based protocol and then delivering that signal to a NextGen 911 Public Safety Answering Point.