"The scope of this specification is to provide implementation guidelines and best practices for the support of the GSM/UMTS Cell Broadcast Service (CBS). This specification is not intended to describe an end-to-end Cell Broadcast architecture@ but includes clarifications to the existing 3GPP CBS standards (see Clause 2@ Normative References)@ as well as ""best practices"" for implementation of the standards. These clarifications may be applicable to any application that uses CBS. Purpose The purpose of this specification is to describe implementation guidelines and best practices related to GSM/UMTS Cell Broadcast Service regardless of the application using CBS. While some examples of specific uses of Cell Broadcast applications (e.g.@ Commercial Mobile Alert Service) are provided@ the focus of the document is on the general Cell Broadcast capabilities which are not tied to any particular application. Application This specification is applicable to the Cell Broadcast Service which operates on GSM or UMTS networks."