[global] title "MT call - unconditional call forwarding" [entities] a "A-party" gmsc "GMSC/gsmSSF" hlr "HLR" scf "gsmSCF (MT)" scf_f "gsmSCF (MF)" c "C-party" [messages] a gmsc "ISUP IAM [MSISDN]" gmsc hlr "MAP SRI [MSISDN]" hlr gmsc "MAP SRI-Res [FTN-U, T-CSI, O-CSI]" gmsc scf "CAP IDP [MSISDN]" scf gmsc "CAP RRB [T-Answer, T-Disconnect]" scf gmsc "CAP CUE" gmsc scf_f "CAP IDP [FTN-U]" scf_f gmsc "CAP RRB [O-Answer, O-Disconnect]" scf_f gmsc "CAP CUE" gmsc c "ISUP IAM [FTN-U]" c gmsc "ISUP ACM" gmsc a "ISUP ACM" c gmsc "ISUP ANM" gmsc scf_f "CAP ERB [O-Answer]" gmsc scf "CAP ERB [T-Answer]" gmsc a "ISUP ANM" c gmsc "ISUP REL" gmsc scf_f "CAP ERB [O-Disconnect]" gmsc scf "CAP ERB [T-Disconnect]" gmsc a "ISUP REL"