I am not a long user of Telenor network because of their bad services and low network if you are a Telenor customer or you used the Telenor network for once then you can understand whats wrong with this network.
It is so disturbing when you want to make a call and you dont have network in your phone I always suffer with bad network when I was using Telenor network the network of Telenor is not good enough its always looks 1 or 2 network out of 5 network signal and due to low signal you are unable to make your call or unable to receive a call and if you call connected the voice will break every time then come to you because of low signal and I saw many time fall in a cross connection many of my friend said that they calling me and fall in a cross connection.
The plans are very cheap but because of low Network and unreliable network people dont like to use Telenor network this is the main reason Im saying here.
If talking about 2G and 3 G network network then I must say it is also worstest and baddest ever internet network , useless and not reliable network connection provided by the Telenor because of low bandwidth internet speed in Telenor network is very very very slow and people fed up with it and using other network today Telenor mobile operator is good for nothing.