LusavanNet Armenia
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Voip Termination ISP
- Billing Software
- E1 Bulk Wholeseller
- H.323 VoIP Gateway
- H.323 Wireless/ GSM VoIP Solutions
- IP devices
- Blue Lava Prorietary 2 & 4 Port Analog VoIP Gateways
- Cisco Systems
- D-TAC
- Billing system of own development
- Custom Open Source Billing Solution
- ixc
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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