w/ VPMOCT128

Echo Cancellation Module REV B

Digium's quad span digital interface cards support 96 (T1 / J1) or 120 (E1) connections to PSTN trunks over four spans (digital circuits). Built exclusively for use with Asterisk and Asterisk-based communications systems, the quad span digital cards provide the best value in digital connectivity.

Quad span digital cards are available in PCI and PCI-Express form factors. All quad span models can be combined with an Octasic DSP-based echo cancellation module from Digium to provide effective hardware echo cancellation across all channels.

Digium cards are compatible with all versions of Asterisk using the DAHDI driver framework. Asterisk and DAHDI are available for free from the Asterisk.org website.

Digium TE410P REV F QUAD T1 CARD /W VPMOCT128 Echo Cancellation Module REV B

The Digium TE410P is a high-performance, cost effective digital telephony interface card with the power to create a seamless network, interconnecting traditional telephony systems with emerging Voice over IP technologies. Used in conjunction with Asterisk, the TE410P can be used to deliver a wide range of PBX and IVR services to the network or handset including Voicemail, Call Conferencing, Three-way Calling, and VoIP Gateways.

Features

• Provides 4 RJ45 port for connecting T1/E1/J1 interface connections
• Supports up to 24 (T1/J1) or 30 (E1) simultaneous calls
• Uses Digium's VoiceBus technology which maximizes system compatibility, eliminates system conflicts and provides outstanding voice quality Optional Digium VPMOCT128 echo cancellation module can be installed to deliver 128ms of echo cancellation across 30 channels in E1 mode or 24 channels in T1 mode. For users who would like the Digium VPMOCT128 echo cancellation module, please click here
• Protocol support includes: ISDN PRI, Robbed-Bit, CAS, MFC/R2
• 32-bit card keyed for universal 3.3V operation and works in any PCI 2.2 or higher compliant slot. (See Figure 2 below; will only fit into Slot 2.)
• Digium VPMOCT128 Echo Cancellation Module
• The VPMOCT128 provides the G.168 algorithm which has been labeled a benchmark for echo cancellation and performs 128ms (1024 taps) of echo cancellation across all 120 channels in E1 mode or all 96 channels in T1/J1 modes.page2image22440

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