ABSTRACT: GR-1251 replaces TR-NWT-001251, Issue 1, but contains NO TECHNICAL CHANGES from that original document. It has been issued strictly to conform with the new Telcordia Technologies document format and GR process, and carries a new issue number and date.

The Numbering Plan AreaPA) Split Management CLASS feature described in this document interacts with the Automatic Callback (AC), Automatic Recall (AR), and Screening List Editing (SLE) CLASS features, and the screening list services, to allow customers to use these features with dialing arrangements that are used for completing calls during the permissive dialing period of an NPA split. Local Exchange Carriers (LECs) assign NPA split pairs to the feature. There are four options associated with each NPA split pair, and the LECs control the status of each option. Each option is associated with function(s) of one or more CLASS features. When an option is active for an NPA split pair, the NPAs of that NPA split pair are considered interchangeable for the function(s) associated with the option. This GR provides the view of Telcordia on generic requirements for the Numbering Plan Area Split Management feature.