16 ports FXO/FXS over E1 PCM multiplexing
16 ports FXO/FXS over E1 PCM Multiplexing
16 ports 2-WIRE 4WIRE E&M to E1 PCM multiplexer
16 ports voice channel PCM multiplexing
16 ports FXO/FXS over E1 PCM Multiplexing
16 ports 2-WIRE 4WIRE E&M to E1 PCM multiplexer
16 ports voice channel PCM multiplexing
