Consistent NAT
Click on VoIP
Click on Settings
Select the checkbox for Enable consistent NAT
Every other checkbox on this page should be unchecked
Click Accept
Advanced Firewall Settings
Click on Firewall Settings
Click on Advanced
Select the check boxes for Enable Stealth Modeand Randomize IP ID
Click Accept
Create Custom VoIP Services
Under Network > Services click Add...
Fill the popup as follows:
Name: VoIP RTP
Protocol: UDP
Port Range: 3000 - 65000
Sub Type: None
Click Add
Click on Service Groups > Add Group...
Name: VOIP Services
Add the following services to the right box
SIP
VoIP RTP
Click Add
Create LAN > WAN Rule for Services
Navigate to Firewall > Access Rules
Click on Matrix
Click on the arrow under LAN > WAN
Click on Add...
Click on the Advanced tab
Create Address Group for Voice Services
Click Firewall > Address Objects > Add
Fill out the following:
Name: Name of the Assignment
Zone Assignment: WAN
Type: Host
IP Address:
(SLC) SUMOFIBER colocation: 198.91.51.90
(SLC) XMISSION colocation: 208.83.224.245
(LAS) SWITCH colocation: 162.252.224.11
Add each IP Address for Voice Services as an Address Object
Create an Address Groupand add the address objects that were created
Name: Voice Services
Excluding Voice Services IPs under Security Services (if applicable)
Click Security Services
Check each Service and see if it is enabled
If so, you need to enable the Exclusion List on each service and set it to Voice Services
Example: Content Filter
Once you exclude it, click Accept