In my home we have a separate home number which will be in home and in our family we would contact that number for any matter.
The network is Tata indicom now it has changed to tata docomo and the signal strength is very good because it is a CDMA sim card which will be having good signal strength.
And the sim has life time validity and we are using it since 10 years and the call rates are very less without recharging any call tariff plans and the signal is very good and we wont get any disturbances while a call being connected.
It also provides full talk time offers and it is best and the offers are also good while comparing to the other networks in the family of Tata. We choose this network because this is the network provider which gave the best results and there are less networks in our area so we choose it. the sim cost is very high at that time it is upto 300 to 400rs, even though it is prepaid sim it is still good and if we use the net it is simply super.