Sangoma A102D ISDN/T1 / FT1/E1 / FE1 Modem - The A102 provides up to 8.2Mbps of full duplex data throughput or 60 voice calls over two T1 and or E1 lines to support high performance PCI-based routing and telephony systems. Advanced clocking features allow E1 and T1 lines to be mixed with full synchronization.