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Example A Wireless Prepaid user maybe hot-lined once their account is depleted. We want to be able to let the user replenish their account. Block their traffic except to a Web Portal. We redirect all their HTTP traffic to the Prepaid Web Portal. We redirect all other traffic such that when we detect packets we respond with an SMS message instructing the user to visit the Prepaid Web Portal. Once the user purchases more time we return the traffic back to normal. |