PSTN Services United States

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General office

PSTN Services
58 Logan Ave
Staten Island
NY ,10301
United States

Phone: +1 718 816 8950
Phone: +1 917 8061209

Contact Person

Kashif Zafar / CEO
Phone: +1 718 816 8950
Phone: +1 917 806 1209

International VoIP Wholesale Provider

Termination

Cisco Systems

Proprietary

Vodawave, Inc.

Global Direct Telecom

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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