I have an mtnl sim for past 2 years, but now days it has start giving some problems with sms service.i can send sms to anyone it gives an error even though i have sufficient balance and i can make calls but cant send any messages, as a teacher i have to inform students about there class timings and etc.. i request u to please clarify this problem as soon ans possible and for any details please send me an email on [email protected]
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