Radio Broadcasting systems - DAta Radio Channel (DARC) - System for wireless infotainment forwarding and teledistribution
Edition 2003-06-01

Integrated Services Digital Network (ISDN) - Selective Call Forwarding (SCF) supplementary services (unconditional, busy and no reply) - Service description
Edition 1999-01-01

Digital cellular telecommunications system (Phase 2+) - Call Forwarding (CF) supplementary services - Stage 3 (GSM 04.82 version 7.0.2 Release 1998)
Edition 2000-03-01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: Supplementary services stage 2 - Sub-part 4: Call Forwarding (CF)
Edition 2003-09-01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 10: Supplementary services stage 1 - Sub-part 4: Call Forwarding (CF)
Edition 2003-12-01

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 11: supplementary services stage 2 - Sub-part 4 : call Forwarding (CF) (V1.1.1)
Edition 2004-09-01

Terrestrial Trunked Radio (TETRA) - Voice plus data (V+D) - Part 10: supplementary services stage 1 - Sub-part 4 : Call Forwarding (CF) (V1.3.1)
Edition 2003-12-01

Information technology - UPnP Device Architecture - Part 8-11: Internet Gateway Device Control Protocol - Layer 3 Forwarding Service
Edition 2008-11

Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); - Part 12: Supplementary services stage 3; Sub-part 4: Call Forwarding (CF) (ETSI EN 300392-12-4 V1.4.1 (2016-07))
Edition 2016-10-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) and Signalling System No.7 (SS7) protocols - Call Forwarding on Not Reachable (CFNRc) supplementary service for Cordless Terminal Mobility (CTM) phase 1 - Part 1: Protocol specification
Edition 1999-12-01