section Messages
  description   Messages used for the msg flow
  message MO-FSM MoForwardSM comming from a Mobile Station via a MSC
  message MO-FSM(ACK) Positive Acknowledge on MO-FSM returned towards a Mobile Station via a MSC
  message MO-FSM(NACK) Negative Acknowledgge on MO-FSM returned towards a Mobile Station via a MSC
  message MT-FSM MtForwardSM send to a Mobile Stattion van a MSC
  message MT-FSM(ACK) Postive Acknowledge on MT-FSM from Mobile Station
  message MT-FSM(NACK) Negative Acknowledge on MT-FSM from Mobile Station
  message SRI-SM Send Routing Information for SM
  message SRI-SM(ACK) Postive Acknowledge on SRI-SM from HLR
  message SRI-SM(NACK) Negative Acknowledge on SRI-SM from HLR
  protocol SS7 SS7 - Protocol description.