1 Scope

23.1423GPPInterface and signalling flowRelease 17TSValue-added Services for SMS (VAS4SMS)

The present document describes the stage 2 of the VAS4SMS (Value Added Service for SMS). It includes:

– The logic architecture;

– The logic elements functionality;

– The signaling flows;

– The interaction with other features.

The service requirements of VAS4SMS are specified in 3GPP TS 22.142 [2].

The functionality and mechanism of SMS Service is defined in 3GPP TS 23.040 [4].