Question: In a CAMEL environment, for a PDP Context with no ongoing TSW before a PDP Context Establishment Acknowledgement event is detected, what action is taken if one set of e-parameters and a Tariff Switch are received?
Option 1: Send the e-parameters to the SGSN (Serving GPRS Support Node) and start TSW with the PDP ID.
Option 2: Store the e-parameters and ignore the Tariff Switch.
Option 3: Error; this combination is not allowed in this context.
Option 4: Send a notification to the UE (User Equipment) to retry.
Explanation: According to predefined rules, when there's no ongoing TSW before a PDP Context Establishment Acknowledgement event and one set of e-parameters along with a Tariff Switch is received, the specified action is to treat this as an error, ensuring consistency in handling parameters and switches within the network.