Panasonic KX-NS1000 Installation Manual page 235

The PBX's IP address must be assigned manually on the SIP phone side.
For instructions, refer to the documentation of the SIP phone.
Not using a DHCP server (DHCP Server feature or an external DHCP server) when assigning IP
addressing information
All of the IP addressing information must be assigned manually.
For instructions, refer to the documentation of the SIP phone.
Note
•
A SIP phone can only receive IP addressing information from a DHCP server on its own LAN. Therefore,
when SIP phones are located on several LANs, a DHCP server is required on each LAN.
•
When the DHCP client function is enabled for SIP phones, simply connect them to the LAN to use the
DHCP server. For details about the DHCP client function setting, refer to the documentation of the SIP
phone.
5.8.1 Assigning IP Addressing Information
Installation Manual 235