Question: In CAP V4, which type of LegID is used for operations sent from the gsmSSF (Service Switching Function) to the gsmSCF (Service Control Function)?
Option 1: Sending Side LegID and Receiving Side LegID are interchangeable.
Option 2: Only Sending Side LegID
Option 3: Receiving Side LegID
Option 4: Either Sending or Receiving Side LegID, depending on the specific operation.
Explanation: According to CAP V4 specifications for CAMEL, when operations are sent from the gsmSSF to the gsmSCF, the Receiving Side LegID is always used. This distinction in LegID types based on the direction of operation ensures clarity and consistency in identifying legs within a call scenario.