VPMADT032 hardware echo cancellation module for TDM410P,AEX410,TDM800P , AEX800 , TDM2400P , AEX2400 , TE122P Asterisk card VPMADT032

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VPMADT032 hardware echo cancellation module for TDM410P,AEX410,TDM800P , AEX800 , TDM2400P , AEX2400 , TE122P Asterisk card

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SKU: VPMADT032

Availability: In stock

US$156. 00
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Qty.Range(unit)2 + 5 +
Price(per unit) US$US$151.00US$146.00
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Purchase Notice 

1) We will ship it by USPS / UPS / DHL / EMS
2) We will ship to your PayPal shipping address ,please be ensure it is correct .
3) Kindly tell me your telephone number to speed up shipment.
4) Buyer is reponsible for clearance and import duty at destination port.
5) We can put lower value at commercial invoice if you request declaring lower value.
6) The item is 100% new ! Warranty 1 year

Discription

VPMADT032  is  echo cancellation module suit for:

TDM410P , AEX410 , TDM800P , AEX800, TDM2400P,AEX2400 ,TE122P asterisk card

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.

Return/Exchange Policy
--We do our best to serve our each customer.
--If buyer confirm the item can`t work well due to the non-artificial factors,buyer can return it to me .We will replace it with a new one after we receive the returned items.it is also OK if the buyer expect a refund .On receiving items, we will refund you immediately.
--A full refund will be given if items are returned in their original condition.
--Buyers are responsible for return shipping fee with proper packaging.
--Items damaged or missing components is not refundable.
--Please contact me first before returning by email .

Contact
--We always try our best to make sure that the buyers have a happy purchasing experience .
--We understand every buyer concerns and frustrations,and will do our endeavor to resolve the issues you might have.Please contact me first before open an ebay/paypal dispute or leaving negative feedback or 1,2 rates. So please give me the opportunity to resolve any problems.
--Dear buyers, we appreciate your support to my store, if you are satisfied with our service, please let me know.Your recognition and support will make us more confident to develop business and serve you better. Thank you very much !

 

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