8.1 Information about Using an IP NetworkThis section explains common IP network information necessary for setting up One-look networks and QSIGnetworks.8.1.1 Using a VoIP Network with the PBXThis PBX supports Panasonic KX-NT300 series, KX-NT500 series, and KX-NT265 IP proprietary telephones(IP-PTs), Panasonic IP softphones, and SIP (Session Initiation Protocol) phones (hardphones and softphones)for communication on a Voice over Internet Protocol (VoIP) network. These IP telephones can be used asextensions of the PBX when the local office LAN is connected to other LANs at different locations.This PBX also enables VoIP communication with PBXs installed at different locations. Since the communicationdoes not take place over conventional telephone network, the high cost of long distance communication isvirtually eliminated.To establish a VoIP network, the virtual cards are used according the requirement of the network. For detailsabout virtual cards, see "4.4 Virtual Cards".The following diagrams illustrate VoIP network with (i) a remote office LAN and (ii) another PBX installed atdifferent location.NotePanasonic IP Cell Station (IP-CS) units are also supported by this PBX for communication on a VoIPnetwork. For details, refer to the Installation Guide for the IP-CS.(i) Connection Outline of VoIP Network with Remote Office LANSIP PhoneExtn. 102IP-PTExtn. 101DHCP ServerRemote Office LANLocal Office LANRouterSwitchingHubPBX withV-IPEXT32 card/V-SIPEXT32 cardIP SoftphoneExtn. 103PrivateIP NetworkIP-PTExtn. 104 SwitchingHubIP SoftphoneExtn. 105RouterSIP PhoneExtn. 106308 Installation Manual Document Version 2016-038.1.1 Using a VoIP Network with the PBX
