Epic Systems China

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General office

Epic Systems
beijingjingchaoyang
beijing
brijing ,100029
China

Phone: 86-010-58773390
Phone: 86-010-58772550
Site: http://www.dalutong.com

Contact Person

rebecca li / salea manager
Phone: 86-010-58773390
Phone: 13681111142

Hardware

IP devices
Termination

Audiocodes

Fanvil Electronics co., ltd

Gstar International(HK) Co., Ltd

Providers in database: 6433

Echo cancellation module VPMADT032

VPMADT032 echo cancellation module is meant to be used with the Digium IP telephony boards; it provides echo cancellation for configurable long "tail" of up to 128 ms (1024 samples) simultaneously for all ports of the board. All IP-PBX Asterisk servers, connected to the telephone network (PSTN) have one common problem, which is "hybrid echo" - echo obtained due to the difference in the load-wire and four-wire telephone circuits. Echo appears as a distorted reflection and a detainee of the caller's voice, who is subscribed to IP-PBX Asterisk while talking to PSTN subscribers.

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