I’ve a Samsung gts 5233 mobile phone. I’ve recently brought this mobile and quite happy with that, but problem arise few days back. When I try to call one of my friend, then I’m unable to call it, then I call to some other friend then again I faced this problem, then I understand that my outgoing call is not working. Whenever I try to call somebody it gives the message ‘service not allowed’. I can receive my all incoming calls but not able to do outgoing calls. I don’t understand why. Will you please tell me why this problem is happening. Please tell me the solution to this. Please help me.
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