ADR (Additional Data Repository)

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An ADR (Additional Data Repository) is a data retrieval facility for Additional Data. The ADR dereferences a URI passed in a Call-Info header field or PIDF-LO <provided-by> and returns an Additional Data object block. An Identity-Searchable Additional Data Repository (IS-ADR) returns Additional Data associated with an identity.

Related Terms:

IS-ADR (Identity Searchable Additional Data Repository)

An Additional Data Repository that provides a service that can search for Additional Data based on a sip/sips or tel URI: (e.g., Additional Data about the caller).

Relevant NENA Documents
Note: To find and download the document, copy the document number (like NENA-STA-010) from below and search the NENA Standards and Documents page.

  • NENA-STA-010, NENA i3 Standard for Next Generation 9-1-1
  • NENA-STA-012, NENA Standard for NG9-1-1 Additional Data