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ETSI - European Telecommunication Standard Institute(ETSI) produces globally-applicable standards for information and telecommunication technologies (ICT) including land, mobile, radio, converged, broadcast and internet technologies.
Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control SCF
Standard published on 19.2.2002
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control SCF
Standard published on 10.7.2002
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control SCF
Standard published on 2.10.2002
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control SCF (Parlay 3)
Standard published on 29.7.2003
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control SCF (Parlay 3)
Standard published on 1.2.2005
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control SCF (Parlay 3)
Standard published on 14.12.2006
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF
Standard published on 19.2.2002
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF
Standard published on 10.7.2002
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF
Standard published on 2.10.2002
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF (Parlay 3)
Standard published on 29.7.2003
Selected format:Latest update: 2026-01-01 (Number of items: 2 253 680)
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