PCM Multiplexer
64-port FXS/FXO over 1*E1 PCM Multiplexer
30-port FXS/FXO PCM Multiplexer
16-port FXS/FXO PCM Multiplexer
60-port FXS/FXO over 2*E1 PCM Multiplexer
30-Channel Voice E1 PCM Multiplexer with 1+1 E1 Redundancy
8-port FXS/FXO PCM Multiplexer
PDH Multiplexer
4E1 PDH Multiplexer (Desktop)
4E1 PDH Multiplexer (Rack-mountable)

关于通讯行业发展的现状，以后多学习，最新的技术。时刻走在时代的前列。

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