Open Services Architecture

From Free net encyclopedia

The Open System Architecture (OSA) is part of the 3rd generation mobile telecommunications network or UMTS. OSA describes how services are architected in an UMTS network.

The standards for OSA are being developed as part of the 3rd Generation Partnership Project (3GPP). The standards for OSA are published by ETSI and 3GPP.

The API for OSA is called Parlay, (or Parlay/OSA or OSA/Parlay) as the APIs are developed jointly in collaboration by 3GPP, ETSI, and the Parlay Group. These APIs can be freely downloaded from the web.

See also

• CAMEL
• IP Multimedia Subsystem

External links

• Download APIs
• The joint 3GPP/ETSI/Parlay work group