I've posted a few pieces on Nortel's GSM-R system along the Qinghai-Tibet railway & located a new tele-geography of security that parallels China's Western Development Strategy.

Lobsang Yeshi, takes up the theme; [“The only thing rising faster than China is the hype about China.”] . . :
The most precise location-tracking system GSM-R digital wireless communication network and surveillance system acquired from Canadian Nortel Networks Corp for the railway is believed to be meant for other strategic purposes.
Phayul had an article at the weekend that helps develop this theory:
Sabotage angst along Tibet Railway
Along the entire railway line, the Military Area Commands of the Tibet Autonomous Region (TAR) and Qinghai Province have reportedly deployed a security safety net with a contingent of up to ten thousand soldiers and civilians patrolling day and night. The Head Quarters of Qinghai Armed Police Force has assigned several branches of its force to safeguard the train throughout its journey.

Communication for security forces along the railway has been stepped up so that conversations on walkie-talkie are now possible on long distance. To this effect, China Telecommunication Company and China Railway Communication Company installed adequate communication equipment and communication stations every 6 kilometres along the whole railway line.
The report suggests that Chinese paramilitary forces are directly benefitting from the GSM-R installation along the railway.