Airtel 3G in Banglore

Last week i visited my brother in Bangalore. I was searching for 3g signals and found Airtel 3g signal, but the sad news was that it was only test signal. I was able to register on UMTS network but the range lasted only for a second then its gone. To my surprise on new year at about 2’o clock morning when i switched DoCoMo 3G sim and back to airtel i saw that though there was no 3g signal but the data connection symbol was not crossed ,huh. When opened browser with Mobile Office access point wola .. there it is, successfully opened nokia home page.i tried downloading few apps from ovi store and got maximum speed of 178KBps (Approximately 1.5mbps). It was somewhat speed i got with a BSNL 3G.I tried in nokia C5 and i could see the network range signal and able to connect to network. On either phone i was unable to make any calls or ussd requests only data connection worked. But joy didnt last known when i tried in the morning i couldnt get connected.
I hope airtel will be able to provide a nice 3G experience to its customers. its too bad that airtel wont have 3G for kerala cirlce 🙁