The Goldinfo can also offer the internet access
service through the wireless information network of Beijing (BWIN).
BWIN is made up of ATM exchanger and SDH figure microwave equipment,
uses the SDH microwave pass way interconnection of 155 Mb/s among
ATM exchanger, the end user can pass2.048 PDH microwave equipment
and ATM visit equipment enter this network even.
The function of this wireless network still includes E1:
E1 circuit emulation
E1 ATM visiting
E1 Frame relay
among the LANs