The requirements described in the present document are mandatory for implementation in all GSM MSs and BSSs capable of supporting the Adaptive Multi-Rate speech traffic channel, unless otherwise stated. Unless otherwise specified, references to GSM include GSM at any frequency band.
DS/EN 301709 V7.2.1:2001 history
2003DS/EN 301709 V8.0.1:2003 Digital cellular telecommunications system (Phase 2+); Link Adaptation (GSM 05.09 version 8.0.1 Release 1999)
2001DS/EN 301709 V7.2.1:2001 Digital cellular telecommunications system (Phase 2+); Link Adaptation (GSM 05.09 version 7.2.1 Release 1998)