Deltathree United States
General office
Deltathree
75 Broad Street, 31st Floor
New York
NY ,10004
United States
Phone: 1-212-500-4850
Site: http://www.deltathree.com
Contact Person
Customer Service / customer service
Phone: 1-877-334-9170
Deltathree
75 Broad Street, 31st Floor
New York
NY ,10004
United States
Phone: 1-212-500-4850
Site: http://www.deltathree.com
Contact Person
Customer Service / customer service
Phone: 1-877-334-9170
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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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