3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual page 161

The file ram.hex is a loadable software image file. The file ram.cmp is a
compressed version of the ram.hex, enabling faster download and reduced file
size. The ram.cmp is the only version that can be transferred to flash memory.
The selected extension fields are then displayed in the right pane of the DHCP Options:
Reservation screen under Active Options, as the following figure shows.
Active Options
Figure 71
12 Select the 003 Router field and click the Value button.
13 Edit the IP Address Array in the IP Address Array Editor screen.
3Com VCX V7111 VoIP SIP Gateways User Manual 161