"Despite the massive migration to Ethernet networks, the popularity of Alcatel 1600 Series telecommunications equipment remains high for operators and utilities companies, even nearly 30 years after their original introduction to the market. But why has it managed to remain popular after all this time?"
We've written an article: Why does the Alcatel 1600 range remain so popular? http://www.carritech.com/news/alcatel-1 ... n-popular/
You may find it interesting.