ITU-T Rec. Q.732.2-5 Amendment 1 (07/2001) Stage 3 description for call offering supplementary services using Signalling ... Summary Source FOREWORD Stage 3 description for call offering supplementary services using Signalling System No. 7: Call diversion services 1) Clause 2.1.2, References 2) Table 2-5/Q.732.2 - Handling of parameters in a diverting exchange 3) Clause 2.6.19, Completion of Calls to Busy Subscriber (CCBS)