Dyad Group, s.r.o. Czech Republic

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General office

Dyad Group, s.r.o.
Blanicka 16
Prague 2
,120 00
Czech Republic

Phone: +420 221 503 560

International VoIP Wholesale Provider
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Push to Talk (PTT)

This is a way of communicating on the half-duplex communication line, includes receiving and transmitting devices (walkie-talkie) by the way of pressing the button for switching to the voice mode or transition to the listening mode. It works as a radio speaker; one can talk by pressing the button and can listen to a voice message by releasing the button.

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Surfcreek Communications is a Pittsburgh, Pennsylvania based Wholesale and Retail VOIP Carrier. Surfcreek has interconnection agreements with more than 150 carriers worldwide. We operate switches in POP's in New York, Los Angeles and London. Our goals are