Digital cellular telecommunications system; Unstructured Supplementary Service Data (USSD); Stage 1 (GSM 02.90)

Standard published on 31.3.1997

Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT); (GSM 02.91)

Standard published on 15.2.1996

Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) (GSM 02.91)

Standard published on 30.3.1996

Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) (GSM 02.91)

Standard published on 31.7.1996

Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) (GSM 02.91)

Standard published on 31.3.1997

Digital cellular telecommunications system (Phase 2+) (GSM); Support of Private Numbering Plan (SPNP); Service description, Stage 1 (GSM 02.95)

Standard published on 30.5.1996

Digital cellular telecommunications system (Phase 2+) (GSM); Support of Private Numbering Plan (SPNP); Service description, Stage 1 (GSM 02.95)

Standard published on 31.7.1996

European digital cellular telecommunications system (Phase 2); Attachment requirements for Global System for Mobile communications (GSM) mobile stations; Telephony

Standard published on 15.2.1996

Network Aspects (NA); European frame relay services

Standard published on 31.10.1994

Network Aspects (NA); Numbering and addressing for X.31 services

Standard published on 31.3.1991