Private Telecommunication Network (PTN); Specification, functional models and information flows; Call offer supplementary service
Document status: Active
Private Telecommunication Network (PTN); Inter-exchange signalling protocol; Call offer supplementary service
Document status: Active
Private Telecommunication Network (PTN); Specification, functional models and information flows; Do not disturb and do not disturb override supplementary services
Document status: Active
Private Telecommunication Network (PTN); Inter-exchange signalling protocol; Do not disturb and do not disturb override supplementary services
Document status: Active
Private Telecommunication Network (PTN); Specification, functional models and information flows; Call completion supplementary services
Document status: Active
Private Integrated Services Network (PISN); Specification, functional models and information flows; Call completion supplementary services
Document status: Active
Private Telecommunication Network (PTN); Inter-exchange signalling protocol ; Call completion supplementary services
Document status: Active
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call completion supplementary services [ISO/IEC 13870 (1995) modified]
Document status: Active
Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) supplementary service; Service description
Document status: Active
Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) supplementary service; Functional capabilities and information flows
Document status: Active
