We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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; Sub-part 5: Conference Call Control SCF (Parlay 4)
Standard published on 5.8.2003
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control; Sub-part 5: Conference Call Control SCF (Parlay 4)
Standard published on 8.3.2005
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 4: Call Control; Sub-part 5: Conference Call Control SCF (Parlay 4)
Standard published on 19.12.2006
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF
Standard published on 21.1.2003
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF (Parlay 4)
Standard published on 5.8.2003
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF (Parlay 4)
Standard published on 8.3.2005
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 5: User Interaction SCF (Parlay 4)
Standard published on 19.12.2006
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 6: Mobility SCF
Standard published on 21.1.2003
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 6: Mobility SCF (Parlay 4)
Standard published on 5.8.2003
Selected format:Open Service Access (OSA); Application Programming Interface (API); Part 6: Mobility SCF (Parlay 4)
Standard published on 8.3.2005
Selected format:Latest update: 2026-01-17 (Number of items: 2 256 397)
© Copyright 2026 NORMSERVIS s.r.o.