1 Scope

28.0623GPPInband Tandem Free Operation (TFO) of speech codecsService descriptionStage 3TS

The present document contains the service description for the in-band signalling protocol for the support of Tandem Free Operation of the Half Rate, Full Rate, Enhanced Full Rate, Adaptive Multi Rate narrowband and Adaptive Multi Rate Wide-Band speech codec types in GSM and GSM-evolved 3G systems.