Callvox United States

Major trends are changing the global telecommunications landscape. Voice traffic is rapidly migrating from large integrated international exchange carriers to more narrowly focused regional providers. This change is driving increasing demand for specialized wholesale carriers that can provide an efficient platform for targeted international voice traffic and high quality termination capacity. Founded by veterans of leading ITSPs worldwide, Callvox is one of these carriers.

By providing unsurpassed quality of service, Callvox enables a select group of clients to reap the benefits of our fully managed global VoIP network. We provide specialized international voice services on a wholesale basis to leading service providers in emerging markets. We do so by constantly expanding our share of international voice traffic while delivering new revenue opportunities to sellers of termination capacity in select destinations worldwide.

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General office

Callvox
60 Hudson Street
New York
NY ,10013
United States

Phone: 1-917-477-4774
Site: http://www.callvox.net

Contact Person

Carrier Sales / Sales
Phone: 1-914-477-4774

International VoIP Wholesale Provider

Partnering for Origination and Termination

Cisco Systems

Proprietary

GXC Corp

HBSDA

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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