8 channel FXS/FXO/E&M over E1   16 channel FXS/FXO/E&M over E1  30   channel FXS/FXO/E&M over E1
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 8 channel FXS/FXO/E&M over E1
 provides 8 channels of telephones over E1 transmission, with reversed polarity charging function and call ID display function

Details more information






 
16 channel FXS/FXO/E&M over E1
1provides 16 channels of telephones over E1 transmission, with reversed polarity charging function and call ID display function

Details  more information




 
30 channel FXS/FXO/E&M over E1
provides 16 channels of telephones over E1 transmission, with reversed polarity charging function and call ID display function

Details  more information
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