scope:

This document provides a minimal set of pass/fail performance parameters for non-loaded metallic loops that have been designed and maintained to primarily support basic voicegrade analog services such as Plain Old Telephone Services (POTS).

The document specifies end-to-end performance tests as well as single-ended performance tests. The document defines the methods, procedures, and equipment to be used for each test, and establishes the pass/fail criteria for each parameter being tested.

Compliance with this technical requirements document should provide compatibility for basic voicegrade analog services in most cases, but this document does not guarantee compatibility or acceptable performance for all services and technologies under all operating conditions.

Tariffs, contracts, or regulatory acts in various jurisdictions may contain additional or more stringent requirements than those specified in this technical requirements document.

In accordance with ANSI guidelines, two categories of specifications are used in this document, mandatory requirements and recommendations. Mandatory requirements are designated by the word "shall" and recommendations by the word "should."