Digium Digital PCI Card VOIP Gateway with 120 VOIP Channels

The Digium TE420B PCI Express card provides termination of up to 120 channels of voice or data across four
E1, T1, or J1 interfaces in a PCIe x1 form factor.

Selectable on a per-port or per-card basis, the TE420B allows E1 and T1 circuits to be mixed with full channel
synchronization. Supporting PCIe x1, this Digium PCI Express Card may be used in any available PCIe 1.0
compliant slot - 1x, x4, x8, and x16 without considerations for voltage selection or lane size.

Digium TE420B Features and Functions
- Quad T1/E1/J1/PRI
- PCI Express Interface
- Hardware Echo Cancellation