Airtel network is one of the top network providers in india.the network provides a good network coverage .as now a days they started a new plan of open network coverage in that they are showing where the network towers are available and there signal strengths. If any signal problems are there then we can call them and apply for a tower in our area .such as to provide a good network coverage.
Airtel provides a very good internet but the internet charges are high when compared to other networks.
As usual the calling rates are good and clear voice calling.as my personel experience it is. Good service provider.