This ETS specifies the Call Completion on Busy Subscriber (SS-CCBS) supplementary service which is applicable to various basic services supported by TETRA Switching and Management Infrastructures (SwMIs). TETRA basic services are specified in ETS 300 392-2 [8]. SS-CCBS allows completion of a call to a subscriber that was unsuccessful because of a busy condition without making a new call attempt.
PUBLISHED
SSH ETS 300 392-10-13:1999 ed.2
60.60
Standard published
7 tet 2024