Home > Asterisk Hardware > Digium > Analog Cards > TDM2400P >   Digium Echo Cancellation Module
Digium Echo Cancellation Module	MAP Price $235.00 Email me a better price Condition: New Manufacturer: Digium Mfr Part: 1VPMADT032F Availability:: Usually Ships in 1 to 2 Business Days Product Code: VH5341 Qty:

Description   The VPMADT032 is a 128ms per-channel echo cancellation module for use with Digium telephony interface cards. For Asterisk users who connect to the PSTN, the most common type of echo is hybrid echo - the echo introduced by the impedance mismatch between 2-wire and 4-wire telephone circuits. The echo manifests as a distorted and delayed reflection of the users voice while in conversation with an external party through the PSTN. Asterisk itself offers a range of software-based open source echo cancellation routines that are moderately effective in eliminating the hybrid mismatch echo that most Asterisk users experience. However, there are cases in which these algorithms are not effective. To combat this, Digium introduced DSP-based echo cancellation modules for our multi-port T1/E1/J1 cards and our 24-port analog card. Now, Digium is pleased to make available the VPMADT032 echo cancellation module. This module, which offers 128ms (1024 taps) of echo cancellation across all of its channels, improves upon the older VPM100M echo cancellation module, that only offered 32ms of echo cancellation. The VPMADT032 provides the same toll-quality G.168 compliant echo cancellation found in Digium's HPEC software-based commercial echo canceller. The VPMADT032 is immune from any system CPU spikes that might otherwise affect a software-based solution. The VPMADT032 may be used with Digium's twenty-four port analog card, the TDM2400P, Digium's eight-port analog card, the TDM800P, and will be used on future Digium interface cards.   Accessories for this product... Digium 2400P Rack Mount Breakout Box Digium 2400P Surface Mount Breakout Box Digium Amphenol Cable Digium PSU Bracket with 1 Power Supply for FXS Mod MAP Price $97.00 Email me a better price Add MAP Price $97.00 Email me a better price Add MAP Price $25.00 Email me a better price Add MAP Price $75.00 Email me a better price Add Digium PSU Bracket with 2 Power Supplies for FXS M MAP Price $100.00 Email me a better price Add Related Products... Digium TDM2402E Digium TDM2421B Digium TDM2403B Digium TDM2414E MAP Price $930.00 Email me a better price Add MAP Price $910.00 Email me a better price Add MAP Price $870.00 Email me a better price Add MAP Price $1,475.00 Email me a better price Add Digium TDM2412E Digium TDM2450B Digium TDM2400P Digium TDM2402B MAP Price $1,125.00 Email me a better price Add MAP Price $1,320.00 Email me a better price Add MAP Price $345.00 Email me a better price Add MAP Price $695.00 Email me a better price Add

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