Main Brands: 3CX /Aastra /Alphatech /Atcom /Beronet /Cisco /Digium /Draytek /Fritz AVM /Gigaset /Grandstream /HP /Junghanns /Kirk /Linksys /NetGear /Panasonic /Patton /Philips /Plantronics /Polycom /PORTech /Sangoma /Sirrix /Snom /Tiptel /Yealink
Houyuan Technology (HK) Limited ( http://www.houyuanhk.com ) is a professional voip manufacturer in China.
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