NG 9-1-1 Oversight Commission Releases RFP for NG 9-1-1 Forest Guide Operator
Tuesday, November 24, 2020 | Comments

The NG 9-1-1 Interoperability Oversight Commission (NIOC) released a request for proposals (RFP) for the forest guide. The forest guide is a core functional element in Internet Engineering Task Force (IETF) and next-generation 9-1-1 (NG 9-1-1) standards to allow for transfer of calls between disparate emergency services IP networks (ESInets).

The forest guide’s functionality is described in IETF 5582 and a forest guide for NG 9-1-1 is specified in the National Emergency Number Association’s i3 standard. The forest guide is a location to service translation (LoST) server that contains mappings of other LoST servers. In NG 9-1-1, the forest guide is queried by an emergency call routing function (ECRF) when the ECRF receives a query for a location for which it has no mappings, such as a location in a distant state. The guide then provides the ECRF with routing information to route the call.

The NIOC is assembling an RFP review committee to assist in reviewing and scoring the received RFPs. The commission is seeking volunteers from across public safety including engineers, programmers, vendor representatives, government officials, telecommunicators and academics. Those interested in volunteering should contact the commission at

Find the full RFP here.

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