Digium is the innovative force behind Asterisk®, the world's most widely used open source telephony platform. In addition, Digium develops the software, hardware, and other components you'll need to create a unified communications solution for a small or medium business. Digium provides a variety of VoIP communications solutions to fit the needs of small, medium and large businesses. The Digium product line includes turn-key business phone systems as well as telephony interface cards, Asterisk software and other components needed to create custom telephony solutions.

Digium TE121 is a single span, selectable T1 (24-channel), E1 (32-channel), or J1 (24-channel) card. The card utilizes Digium's VoiceBus technology. VoiceBus technology allows the TE121 to use an industry standard bus-mastering PCI Express interface, as found in millions of PCs worldwide, to maximize system compatibility and eliminate system conflicts.

The TE121 supports both voice and data modes on its single span. For example, the card can support 12 channels dedicated to voice, routed directly to the Asterisk® Open Source PBX, and 12 to data, handled by the underlying Linux operating system, thus eliminating the need for an external router. Supporting PCIe x1, the TE121 may be used in any available PCIe 1.0 compliant slot - 1x, x4, x8, and x16 without considerations for voltage selection or lane size.

By utilizing our TDMoE (TDM over Ethernet) technology, an exclusive Digium process, you can easily connect multiple PCs equipped with the TE121 and achieve voice quality on par with single PBX implementations. Scalability for this product is derived from adding multiple TE121 cards to each individual PC. Add additional cards as you need them for your expanding applications.

The TE121 supports industry standard telephony and data protocols, including both RBS and Primary Rate ISDN (PRI) protocol families for voice and PPP, Cisco HDLC, and Frame Relay data modes. The board drives both line-side and trunk-side interfaces, including call features.

Additional Information/Documentation

• Product Datasheet

MAPLELEAF's Product Warranty Period: 2-years.

Availability: Immediate/In-Stock.

Digium TE121B is a single span, selectable T1 (24-channel), E1 (32-channel), or J1 (24-channel) card. The card utilizes Digium's VoiceBus technology. VoiceBus technology allows the TE121B to use an industry standard bus-mastering PCI Express interface, as found in millions of PCs worldwide, to maximize system compatibility and eliminate system conflicts.

Digium's VPMADT032 hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior echo cancellation on both types of analog interfaces.

The TE121B supports both voice and data modes on its single span. For example, the card can support 12 channels dedicated to voice, routed directly to the Asterisk® Open Source PBX, and 12 to data, handled by the underlying Linux operating system, thus eliminating the need for an external router. Supporting PCIe x1, the TE121B may be used in any available PCIe 1.0 compliant slot - 1x, x4, x8, and x16 without considerations for voltage selection or lane size.

By utilizing our TDMoE (TDM over Ethernet) technology, an exclusive Digium process, you can easily connect multiple PCs equipped with the TE121B and achieve voice quality on par with single PBX implementations. Scalability for this product is derived from adding multiple TE121B cards to each individual PC. Add additional cards as you need them for your expanding applications.

The TE121B supports industry standard telephony and data protocols, including both RBS and Primary Rate ISDN (PRI) protocol families for voice and PPP, Cisco HDLC, and Frame Relay data modes. The board drives both line-side and trunk-side interfaces, including call features.

Additional Information/Documentation

• Product Datasheet

MAPLELEAF's Product Warranty Period: 2-years.

Availability: Immediate/In-Stock.

Digium's TE220 PCI Express card provides termination of up to 60 channels of voice or data across two E1, T1, or J1 interfaces in a PCIe x1 form factor. Selectable on a per-port or per-card basis, the TE220 allows E1 and T1 circuits to be mixed with full channel synchronization. Supporting PCIe x1, the TE220 may be used in any available PCIe 1.0 compliant slot - 1x, x4, x8, and x16 without considerations for voltage selection or lane size.

The TE220 supports industry standard telephony protocols including North American and European Primary Rate signalling as well as standard Robbed Bit, Channel Associated Signalling in addition to standard PPP, HDLC, and Frame Relay data modes.

Additional Information/Documentation

• Product Datasheet

MAPLELEAF's Product Warranty Period: 2-years.

Availability: Immediate/In-Stock.

Digium's TE220B PCI Express card provides termination of up to 60 channels of voice or data across two E1, T1, or J1 interfaces in a PCIe x1 form factor. Selectable on a per-port or per-card basis, the TE220B allows E1 and T1 circuits to be mixed with full channel synchronization. Supporting PCIe x1, the TE420B 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's VPMOCT064 Octasic™ DSP-based echo cancellation module provides the G.168 algorithm which has been labeled a benchmark for echo cancellation and performs 128ms (1024 taps) of echo cancellation across all 60 channels in E1 mode or all 48 channels in T1/J1 modes.

The TE220B supports industry standard telephony protocols including North American and European Primary Rate signalling as well as standard Robbed Bit, Channel Associated Signalling in addition to standard PPP, HDLC, and Frame Relay data modes.

Additional Information/Documentation

• Product Datasheet

MAPLELEAF's Product Warranty Period: 2-years.

Availability: Immediate/In-Stock

Digium's TE420 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 TE420 allows E1 and T1 circuits to be mixed with full channel synchronization. Supporting PCIe x1, the TE420 may be used in any available PCIe 1.0 compliant slot - 1x, x4, x8, and x16 without considerations for voltage selection or lane size.

The TE420 supports industry standard telephony protocols including North American and European Primary Rate signalling as well as standard Robbed Bit, Channel Associated Signalling in addition to standard PPP, HDLC, and Frame Relay data modes.

Additional Information/Documentation

• Product Datasheet

MAPLELEAF's Product Warranty Period: 2-years.

Availability: Immediate/In-Stock.

Digium's 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, the TE420B 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's VPMOCT128 Octasic™ DSP-based echo cancellation module provides the G.168 algorithm which has been labeled a benchmark for echo cancellation and performs 128ms (1024 taps) of echo cancellation across all 128 channels in E1 mode or all 96 channels in T1/J1 modes.

The TE420B supports industry standard telephony protocols including North American and European Primary Rate signalling as well as standard Robbed Bit, Channel Associated Signalling in addition to standard PPP, HDLC, and Frame Relay data modes.

Additional Information/Documentation

• Product Datasheet

MAPLELEAF's Product Warranty Period: 2-years.

Availability: Immediate/In-Stock.