WorldTeL Technologies Pte Ltd Taiwan

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General office

WorldTeL Technologies Pte Ltd
1F, No. 7, Daxin Street, Xitun District, Taiwan (R.O.C)
Taichung City 407
N/A ,40746
Taiwan

Phone: 886422956623
Site: http://www.worldteltech.com

International VoIP Wholesale Provider
Internet Telephony Service Provider
SIP Billing
VoIP Billing Software Provider

Billing Software
Call Relay VoIP Solutions
Call Routing VoIP Solutions
H.323 Softswitch & CPE

Cisco Systems

Billing system of own development
Custom Open Source Billing Solution

Vector Technology Corp.

Soundwin Network Inc

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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