제품군
•S-GW : Serving Gateway
•P-GW : PDN Gateway
•GLR : Gateway Location Register
•DEA : Diameter Edge Agent
•MME : Mobility Management Entity
•DRA : Diameter Routing Agent
•PCRF : Policy and Charging Rule Function
•EIR : Equipment Identity Register
•AuC : Authentication Center
•HSS : Home Subscriber Server
•SPR : Subscriber Profile Repository
•MAGW : Mobile Access Gateway
