(Fill in the blank questions 1. The traditional communication network consists of three major parts: transmission, (exchange) and terminal. 2. Telephone speech is quantized and encoded and transmitted at a rate of (64) kdit/s. 3. The GSM network selects the widely used (No? 7 signaling) system to transmit various signaling information of the mobile network.)
发表于 2022-8-1 14:54:37
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