Appia Communications United States

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Appia Communications
1220 Iroquois Ave, Suite 150
Naperville
IL ,60563
United States

Phone: 8772774297
Phone: 2319290970
Site: http://www.appiaservices.com

Contact Person

Matt Cowall / Communications Manager
Phone: 2319290970
Phone: 2319290970

Internet Telephony Service Provider
Internet VoIP and Video Conferencing Service Provider
Network Service Provider
Voip consulting

Call Relay VoIP Solutions
Call Routing VoIP Solutions
Collaboration
Data Conferencing
Installation and Support Services
System Integration
Voice and Video Conferencing

Cisco Systems

None

Appia Communications

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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