8 ports FXO/FXS over E1 PCM equipment
8 ports FXO/FXS over E1 PCM equipment
8 ports 2-WIRE 4-WIRE E&M to E1 PCM multiplexer
8 ports VOICES rs232 ethernet over E1 PCM multiplexing
8 ports FXO/FXS over E1 PCM equipment
8 ports 2-WIRE 4-WIRE E&M to E1 PCM multiplexer
8 ports VOICES rs232 ethernet over E1 PCM multiplexing