"forwarding " CNS Standards List| Brass Screwed | Dimensions 127, | Hexagon high | Prevailing torque | Method test | Nylon Tire | L + | Method Test | |
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CNS 13883
2018 Edition Integrated services digital network call forwarding busy, call forwarding no reply and call forwarding unconditional supplementary service 整體服務數位網路–忙線時、未應答及無條件指定轉接增添服務 |
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