Tầng 7, Số 49 Trung Kính, Trung Hòa, Cầu Giấy, Hà Nội.
215/56 Đường Nguyễn Xí, P.13, Q.Bình Thạnh
Avaya switchboard is strong and rich in features, which is considered to be the world leader in information systems, applications and technologies. GTC provides and installs good quality and genuine Avaya telephone exchange
Hotline: 024.777.99.777 - 0902.253.263