8.20 Supplementary Services

3GPP43.318Generic Access Network (GAN)Release 16Stage 2TS

GSM has a large number of standardized supplementary services. These supplementary services involve procedures that operate end-to-end between the MS and the MSC. The DTAP messages used for the supplementary service are relayed between the MS and MSC in the same manner as in the other call control and mobility management scenarios described in this document.