Hi chromaniac !!
i put up in Ggn sector 4. got BSNL Combo 850 a few months back (to get rid of Airtel F**uped). you got answers some of your questions, rest are as follows....
ryt now installation fees and some other charges are also waived off. modems are readily avl. with them or you can use your old one also (but you have to configure it on your own) they are lazy ppl, doesn't know much about configuration.
Bsnl has given dealership to pvt. players so they will call you, they collect my documents on sunday itself.
they do not seek any bribe now a days.
i got connectivity issues once, just complained on their MIS portal and got it resolved
they are not technical people, i am using bb forum to take care of my technical needs
🙂
SNR (22) and Attenuation (37) may create problem as i am facing at my place.
Speed test :
https://www.speedtest.net/result/2225586848.png
Ping test (Mumbai server) :
http://www.pingtest.net/result/70396354.png
do let me know......anything else.