4.4.2 Setting the VLAN ParametersTo establish voice communications between IP telephones, the primary ports of the IP telephones and theconnected PBX must belong to the same VLAN. Consult your network administrator and obtain the appropriateVLAN ID.If you are using an IP telephone equipped with two ports, it is possible to place primary and secondary portsof the IP telephone on different VLANs by assigning separate VLAN IDs to each port.Follow the procedure below for all IP-PTs on the network, using appropriate VLAN IDs.Note• For details for the KX-NT400, refer to the Operating Instructions of the KX-NT400.• The procedure for SIP Extensions may vary depending on the type of the SIP Extension being used.Refer to the documentation of your SIP Extension for instructions.KX-NT300 series (except KX-NT321)Select "VLAN". ENTERENTERVLAN IDENTERVLAN Priority*¹ENTERPress "STORE".STORETo set the VLAN ID for the primary portTo set the VLAN ID for the secondary portTo end programming0–71–4094Select "Primary port".ENTERVLAN IDENTERVLAN Priority*¹ENTER1–4094Select"Secondary port (TO PC)".Select "VLAN Priority". ENTERReturn to theVLAN setting screen.ENTERENTERSelect"VLAN Priority".ENTERReturn to theMenu screen.Select "Enable" forVLAN setting.Select "VLAN ID".Select "VLAN ID".0–7After assigningthe IP addressesThe IP-PT will rebootand can then beregistered to the PBX.ENTERSelect " QoS" .*1 The VLAN priority of the primary port must be set higher than the priority of the secondary port. The larger the number, the higherthe priority.64 IP Networking Guide Document Version 2009-124.4.2 Setting the VLAN Parameters