Dear Pen Hing: It really was a hard job, how came it be. The work nature like "工兵" in military term. Dangerous with extreme weather and terrain conditions. I knew pole erecting so well since I had learnt from telephone school's courses. It need to dig a hole 1m depth, and climb up sure without ladder just like a monkey. Of course no banana for reward. I had seen many times those guys climbing pole, you should be very fit in physical. We were need to spot the locations where subscribers were unable to serve without poles, that our job needed find the location on the map and oversee the circumstance to see the possibility to provide land line for the subscriber. Then we processed a map marked all details and sent to the unit where subscriber belonged to. The unit then sent instruction "Order" to SID to follow up. Another section "External Planning" will reconsider if our proposal was not satisfied safety, overhead high tension crossing, poles not allowed erect on private land etc., So, how long did it last?