http://www.zisacom.com.cn/en/index.asp

http://www.bridgecommunication.co.kr/

http://www.fibridge.com/eng/index.htm

http://www.occamnetworks.com/

http://www.iptran.com.tw/

http://www.opnet.com.tw/eng/application02.html

http://www.iskratel.com/

http://www.valiantcom.com/

http://www.versatek.com/about/aboutus.htm

http://www.zhone.com/products/dslam/

http://www.teledata-networks.com/site/en/teledata.asp?pi=24

http://www.sipura.com/ for ATAs

http://www.raisecom-international.com/

http://www.utstar.com/Solutions/Broadband/Hardened_DSLAM/