Most of the referenced objects contain parameters for supplementary services that need to store data. For example, the referenced CFU object simply specifies whether the user is using the call forward unconditionally (CFU) supplementary service. Not all supplementary services require data storage. See ”About Using VoLTE Supplementary Services” in Enhanced Communication Application Services Concepts for the complete list of supplementary services and their specifications.

See the csp.xml file for the parameter options available for each supplementary service. You activate/deactivate each supplementary service using the active parameter (boolean). The other parameter depend on the individual service needs. The services that require the most precise control reference the commonRules object shown in Figure A-3.