Digital Cellular Telecommunications System (Phase 2+); Voice Group Call Service (VGSC); Stage 2 (3GPP TS 03.68 Version 8.6.0 Release 1999; Includes Diskette)
英文名称:Digital Cellular Telecommunications System (Phase 2+); Voice Group Call Service (VGSC); Stage 2 (3GPP TS 03.68 Version 8.6.0 Release 1999; Includes Diskette)