packet-switched data network (PSDN)
PSDN Packet Switched data network
Packet Switched Public Data Network
Packet Switched Public Data Network PSPDN
Cellular Digital Packet Data Network
loop back testlocal packet switched network
LPCVDlocal packet switched network
LPN Local Packet switched Network
NPSI Network Packet Switched Interface
optical packet switched network
packet switched data transmission service
Packet switched Network
packet-switched data-transmission service
packet-switched network
分组接转网络
分封交换网络
封包交换网络
报文分组交换网络
public packet data network
public packet switched network