ETSI TS 122 173-2020  Digital Cellular Telecommunications System (Phase 2+) (Gsm); Universal Mobile Telecommunications System (Umts); Lte; Ip Multimedia Core Network Subsystem (Ims) Multimedia Telephony Service And Supplementary Services; Stage 1 (3Gpp Ts ETSI TS 122 173-2020  Digital Cellular Telecommunications System (Phase 2+) (Gsm); Universal Mobile Telecommunications System (Umts); Lte; Ip Multimedia Core Network Subsystem (Ims) Multimedia Telephony Service And Supplementary Services; Stage 1 (3Gpp Ts

ETSI TS 122 173-2020 Digital Cellular Telecommunications System (Phase 2+) (Gsm); Universal Mobile Telecommunications System (Umts); Lte; Ip Multimedia Core Network Subsystem (Ims) Multimedia Telephony Service And Supplementary Services; Stage 1 (3Gpp Ts

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  • 标准编号:ETSI TS 122 173-2020
  • 标准状态:现行
  • 更新时间:2023-05-14
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