User Manual and Operating Guide
Epygi Technologies  Configuring Grandstream IP Phones on Quadro LAN 
Figure 6- SIP Phone uses dedicated DHCP server 
Please note: If your company’s LAN configuration is similar to the one shown in Figure 6 make 
sure the DHCP server is disabled on the Quadro LAN. If it is not, unpredictable network behaviour 
may occur. 
7.1 Configuration Changes to a DHCP Server 
The steps below describe how to correctly configure the DHCP server. These steps also apply to 
LANs that consist of several logical subnets with the DHCP server and a SIP phone on one subnet, 
and the Quadro on another. 
•  Set the options listed in Table 1 to the values shown in the right column. 
•  Create a DHCP record for each SIP phone connected to the Quadro LAN.  
•  Reset the ph t. one to its default settings and then reboo
    l scope options  
Option Name  Value  Example 
   Table 1 Globa
003 Router 
Quadro LAN IP  172.30.0.1 
004 Time Server 
Quadro LAN IP  172.30.0.1 
005 Name Servers 
Quadro LAN IP  172.30.0.1 
006 DNS Servers 
Quadro LAN IP  172.30.0.1 
015 DNS-Domain Name    com epygi-config.com epygi-config.
066 TFTP Server Name 
Quadro LAN IP  172.30.0.1 
Once the appropriate changes to the DHCP server configuration are completed, reset the phone to 
tart the phone configuration. Please see Section 4
s
. 
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