Pseudo Automatic Number Identification

Definition
A Pseudo Automatic Number Identification (Pseudo-ANI) is

"[a] number, consisting of the same number of digits as ANI, that is not a North American Numbering Plan telephone directory number and may be used in place of an ANI to convey special meaning. The special meaning assigned to the pseudo-ANI is determined by agreements, as necessary, between the system originating the call, intermediate systems handling and routing the call, and the destination system."