दूरसंचार विभाग
If a consumer having SIM number of Company A, ports his number to Company B, wants the call history record of his mobile number for the duration when Company A was the service provider.
Then which company is responsible to provide the call history record to the consumer?
What is the procedure to get the call history details from the concerned service provider company ?
What steps can the consumer take if the concerned company does not provide the call history records to the consumer at his request ?