Zycoo is the leading manufacture of IP-PBX Products. Our products line including VoIP Phone, Telephony Cards and IP PBX.
With the high voice quality, stable performance and competitive price, our products have been adopted by many carriers and ISP fro
Kortel has a physical presence in Los Angeles, CA USA and prefers connectivity via VoIP packet interfaces with either H.323 or SIP. This reach minimises, or can even eliminate, the local access circuit cost which all too often becomes the highest cost ite
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