Integrated Services Digital Network (ISDN). Completion of Calls to Busy Subscriber (CCBS) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

Standard published on 1.7.2002

Integrated Services Digital Network (ISDN). Completion of Calls to Busy Subscriber (CCBS) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

Standard published on 1.7.2002

Integrated Services Digital Network (ISDN). Completion of Calls to Busy Subscriber (CCBS) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

Standard published on 1.5.2001

Digitálna sieť integrovaných služieb (ISDN). Doplnková služba - Dokončenie spojenia s obsadeným účastníkom (CCBS). Protokol digitálneho účastníckeho signalizačného systému č. 1 (DSS1). Časť 6: Abstraktná skúšobná zostava (ATS) a čiastková špecifikácia predlohy protokolu s doplnkovými informáciami na skúšanie implementácie (PIXIT) na strane siete (Norma na priame používanie ako STN).

Standard published on 1.8.2002

Integrated Services Digital Network (ISDN). Signalling System No. 7. Signalling internetworking specification for ISDN User Part (ISUP) version 2

Standard published on 1.8.1998

Private Telecommunication Network (PTN). Specification, functional model and information flows. Call offer supplementary service

Standard published on 1.12.1995

Private Integrated Services Network (PISN). Specification, functional models and information flows. Call offer supplementary service [ISO/ IEC 14841 (1996), modified]

Standard published on 1.8.2000

Private Integrated Services Network (PISN); Specification, functional model and information flows; Call offer supplementary service [ISO/IEC 14841 (1996) modified]

Standard published on 1.2.2004

Private Telecommunication Network (PTN). Inter-exchange signalling protokol. Call offer supplementary service

Standard published on 1.12.1995

Private Integrated Services Network (PISN). Inter-exchange signalling protocol. Call offer supplementary service [ISO/IEC 14843 (1996), modified]

Standard published on 1.8.2000