BYO Unifi Router/Switch with VoIP phones FTTP NBN

[Senna440]

Hi,

Im thinking of purchasing a unifi switch and router and wondering if I will be able to still have my VoIP phones working if the original router supplied by optus is plugged into the unifi switch with its gateway set to the unifi router. I've seen similar posts on this forum but the optus router sits behind the byo router inbetween the NTU. I've made a very basic Visio diagram to try an make my idea clearer.

Reference Post: https://yescrowd.optus.com.au/t5/NBN/BYO-Voip-Router/td-p/533071

[Jeneral__Pain]

What you propose would work just fine, make sure you forward port 5060 at the IP assigned to the Optus router for your phone service to work correctly.

Optus doesn't supply the SIP details due to support boundaries, there is way too many ways to skin a cat when it comes to VoIP setups... and it's impossible to support every single outcome (especially for scripted support).

[djstewart]

Senna did you get this working? I have the same setup and am interested in how you went

[Senna440]

Yes only thing I had to do was port forward port 5060 to the staticly assigned IP of the Optus router and the phones work fine 

[djstewart]

awesome. If you get a chance, can you tell me how you did that?

I've tried setting up a port forward rule via the unifi controller, but i must be doing it wrong.

I've set:

From: 'Anywhere'

Port: 5060

Forward IP: 192.168.0.1 (optus router IP)

Forward Port: 5060

Protocol: Both

[Senna440 · Accepted solution]

Yeah that rule is correct and the same as mine.

Make sure the IP of the Optus router is correct and that the it's connected to the switch via the WAN port on the back of the Optus router, usually a red colour not by one of the 4 yellow LAN ports  

[djstewart]

Thanks mate! I had the optus router connected via a LAN port not the WAN port. Changed it over and all good.

Thanks heaps

[eytng]

Hi,

Excellent visio graph.

Do you set static ip on the LAN port or the WAN port of the Optus router?

Should port forwarding destination be the WAN port IP address or LAN port IP address of the Optus router. I guess it would be WAN port, since nothing except the phone is plugged into the Optus router?

Much appreciated if you can help me.

Ed

[Senna440]

I set a static IP for the Optus router wan through the unifi controller and then create a port forward rule to that address of the wan on port 5060

[cb1954]

Did you connect switch port to Optus modem WAN port or LAN port.

Trying to replicate with no luck