What is credit control in terms of telecom billing?

Credit Control is a mechanism by which customer is infromed about the threshold value of his usage. The threshold limit is known as Credit limit. When customer usage exceed the predefined credit limit appropriate action for informing the customer balance is done For eg: Customer having a credit Limit of $100, will be informed on 80% of usage by a mean of SMS , on reaching threshold of 90% might be informed by mean of a remainder call etc and when 100% credit limit has been reached, then Out going might be barred.

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