VOIP Service Providers Residential
Unient Communications, a.s.
We are a company dealing exclusively with digital communications. In cooperation with companies such as BroadSoft, Sonus Networks, Cisco Systems, Audiocodes, Polycom, and more we are directed mainly towards offering viphone services. The second area is th
Czech Republic / Praha 5 / Barrandovska 60
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Opavanet a.s.
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.
kingasterisk technology
we are providing our solutions, services and supports on several
applications like asterisk, freepbx, A2billing, vicidial / Goautodial / OS dial / SoundBox dialer,
voicebroadcast, click to call, IVR, hylafax, Elastix, EPABX, web conferencing solutions and lots more.
