Private Network Public Network
Public Telephone Network
after payment type public telephone
dissemination model of network public sentiment
LNPN Lotus Notes for Public Network
Navigation-aids Public Network System
Network Public Information
network public sentiment
NTT Nippon Telegraph and Telephone Public Corporation
pre-pay public telephone
PSTN Public switched telephone network
Public network coverage
public network identity
Public Network Information Platform
public switched telephone network
电话公网
电话网
公用电话网络
公用电话网
公共电话交换网
公用交换电话网
固定电话网络
公共交换电话网路
公用交换电话网络
public switched telephone network {= PSTN}