Digital Cellular Telecommunications System (Phase 2+); Multiband Operation of GSM/DCS 1 800 by a Single Operator (GSM 03.26; Version 5.1.0; Second Edition)
英文名称:Digital Cellular Telecommunications System (Phase 2+); Multiband Operation of GSM/DCS 1 800 by a Single Operator (GSM 03.26; Version 5.1.0; Second Edition)