1. Belkin: F5D8233, F5D7230 and most of the models
DUO should be configured on DMZ in your router
Port Forwarding recommend UDP Ports 12000-12001
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

2. Westell: A90-750015-07 from Verizon
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

3. Ambit: Cable Modem Gateway (Modem/Router - Blocks Sip Access)
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

4. Frys Routers
Works with ddwrt open firmware but DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

5. D-Link: Gamerlounge DGL-4500, it may cause loss of dial tone.
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

6. Netgear: WPN824N or similar models
DUO should be configured on DMZ in your router
SIP ALG Should be off (if option available under WAN Settings)
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

7. Verizon: GT704-WG-B (Causes DUO to drop after 2 rings)
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

8. RCA DCW 725 Wireless Gateway Modem/Router Combo
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

9. Ubee Modem/Router Combo Model DDW2600
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

10. Clear modem/routers: CPEi 25150
DUO should be configured on DMZ in your router
On your router it is required to add the DHCP for DNS1 as 4.2.2.2 and DNS2 as 4.2.2.1

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