Stelt Telecom Russia

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General office

Stelt Telecom
Kostina st. 3
Nizhny Novgorod
,603000
Russia

Phone: +7 8312 780 272
Site: http://www.skymile.ru

Contact Person

Michael Tochkov / Main Engineer
Phone: +7 8312 780 272

Hosted VoIP billing service provider
Internet Telephony Service Provider
Voip Termination ISP
Wireless Broadband

Billing Software
Call Relay VoIP Solutions
Call Routing VoIP Solutions
H.323 Softswitch & CPE
H.323 VoIP Gateway
Phone To Phone
SIP Softswitch & CPE
SIP VoIP Gateway

Cisco Systems
Vegastream

Custom Open Source Billing Solution

Global Telecom

Teleport TP

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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