The Gn SGSN now supports processing of Uplink Data Status IE in Service Request; RABs are established for NSAPIs present in the Uplink Data Status IE. With this feature enhancement the RAB's are selectively established for NSAPIs which require uplink data transfer. In earlier releases RABs were established for all PDPs. Support has been added to decode Uplink Data Status IE in the Service Request. Performance improvement and reduced signaling are observed as RABs are established only for NSAPIs which require uplink data transfer.
A new CLI command has been provided under the Call Control Profile to enable or disable this feature. The user can configure the CLI to either ignore or process the Uplink Data Status IE in Service Request. This feature is enabled by default.