FXS/FXO Configurable

DSP-enabled echo cancellation 

Lifetime maintenance

1/2/4/8 ports of T1/E1/J1

Carrier-grade reliability

DMA data processing technology

Up to 16 ISDN BRI ports

Mix TE and NT modes

DSP-enabled echo cancellation of carrier-grade(32ms or 128ms optional)

Six-years warranty, refundable two-month return, lifetime maintenance 

High-performance transcoding algorithm

PCI-express interface

Dedicated DSP resources