4tel VoIP United Kingdom

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General office

4tel VoIP
86 The Avenue
Gainsborough
Lincs. ,DN21 1EH
United Kingdom

Phone: +44 1427 858005
Site: http://www.4tel.biz

Hardware
International VoIP Wholesale Provider

Call Relay VoIP Solutions
Call Routing VoIP Solutions
Collaboration
Installation and Support Services
Partnering for Origination and Termination
SIP Softswitch & CPE

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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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AEBC Internet Corp

AEBC Internet was founded in 1996 as an ISP division of AE Electronics. We see a vision that inspires us to be a new kind of company, a company that makes it easy for its customers to experience the power of new technologies and different level of servic