04.103GPPMobile Radio Interface Layer 3 - Supplementary Services Specification - General AspectsTS
The message used to transport the supplementary service operation is shown above the arrow. If a single message or a list of messages is specified then only these messages shall be used to transport the operation shown in the context shown. If the letters "e.g." are included before the message name or a list of messages then the messages shown are only suggested examples. If "e.g." is used then any message that carries the Facility information element which is consistent with the transaction state may be used for the SS operation.