KOL TELECOM SERVICES LLC United States

A VoIP whole suite supplier

Contact on Skype: alanj.kol

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General office

KOL TELECOM SERVICES LLC
2711 Centreville Road, Suite 400
Wilmington
DE ,19808
United States

Phone: 13022952746
Site: http://www.koltelecom.com

Contact Person

Alan John / Regional Sales Head
Phone: +1 302 295 2746 ext.

A-Z Termination
Billing and Routing Solution
Cloud-based Unified Communications Service Provider
did numbers provider
Hosted PBX Service Provider
Hosted VoIP billing service provider
International VoIP Wholesale Provider
Mobile VoIP
VoIP Billing Software Provider
Voip consulting
wholesale VoIP
Wholesale VoIP Carrier

Not data

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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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