Airtel — very worst network( didn't connect any calls)

Address:	Coimbatore, Tamil Nadu, 641103
Website:	very bad network airtel

I attached in my call history screen shot please see that. Very bad. More then 20 times I called but didn't connect. while calling voice comment saying all lines are busy.. actually what is this. Listen network is very useful for emergency purpose but airtel very worst. Sim no:[protected]. Now iam asking to airtel owner, R U USING Airtel NETWORK. With this sim if I will get any emergency problem means airtel network is a responsible .by A.Balakrishnan