Sangoma A108X ISDN/T1 / FT1/E1 / FE1 Modem - Obtainable in both PCI (A108) and PCI Express (A108E) form factors, the A108 provides up to 16.4Mbps of full duplex data throughput or 240 voice calls over eight T1 and or E1 lines to support high performance PCI-based routing and telephony systems.