Net2Phone Max 430 User Manual
Page 46

Max 410/420/430 User’s Guide – Chapter 5 
 
38
Idle – CDR is not enabled
NOTE: If a default gateway address or a 
DNS server address is not used the value 
0.0.0.0 must be entered into their 
respective boxes. If the boxes are left 
blank the modified configuration settings 
will not be saved. 
REMINDER: Configuration changes you 
make in the Max 410/420/430 are not 
applied until you reset the unit. To do this, 
you may either: 
go to the Restart System page (see
Restart System on page 52 in this 
Guide) and click Restart, 
type
/system/reset
at the
command prompt, or
power-off the unit, wait 10 seconds,
and turn it on again.
Configuring Firewalls
In Max-to-Max calling (when you call any Max unit from 
another Max), if either Max is connected to a LAN that 
employs a firewall, you will need to configure settings on 
both the Max and the firewall before Max-to-Max calls can 
be placed. This section will explain how to make the 
necessary adjustments. 
If your connection to the Internet utilizes a firewall, several 
ports will have to be opened to allow your Net2Phone Max 
gateway to make and receive calls to other Net2Phone 
devices. 
UDP Port 6801 must be opened. The following port 
types/ranges must also be opened (the numbers displayed 
are the default start points for each): 
 UDP Port (OPAL) 7000 
 
TCP Port 4000
