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2 specifications found, displaying 1 to 2
Specification NumberTypeTitleStatusPrimary Responsible Group 
22.127TSService requirement for the Open Services Access (OSA); Stage 1Under change control S1
See details Internal Common IMS 2G 3G LTE 5G
29.199-03TSOpen Service Access (OSA); Parlay X web services; Part 3: Call notificationUnder change control CP
See details Internal Common IMS 2G 3G LTE 5G