I purchased a mobile phone nokia 2730 from mobile world opposite lal bhadur shastri stadium in klk estate in hyderabad in second week of april, since i was going to dubai usa and canada.i took a prepaid airtel connection with a recharge of 4500 rupees.i was told by mobile world hyd that prepaid mobile 2730 can be used to call from Dubai to Usa, Usa to India, Usa to canada.when i reached Dubai i was able to contact usa but unfortunately i was unable to contact india, canada and locally in usa.i purposely took prepaid connection so that i can... read full review »