hey there, try to post the VOIP settings page and it will help a lot to check the current configuration. 

The ISP Router has this kind of port forwarding ou port triggering, but I can't found it in my tp-link. I think that port 5060 is closed on tp-link

Yes. Are two WAN conections. The internet traffic runs under VLan 100 and VoIP runs under VLan 2.
If I set the defaut gateway as the gateway from the PPPoE_2 the VoIP runs ok, but I can't surf on internet, Set the defaut gateway as PPPoE_100 the internet runs ok, and VoIP has no voice.

The Serial is 317A0.


The third image is from TIM router Sagemcom (a terrible router, the worst router they can send for users), you can see that in this modem the port 5060 is open to the PPPoE_2. I don't know if sagemcom router needs this setup or all routers need the same , but in TP-Link I can't do it.

Kevin_Z wrote

Hi,

 

I found that there are 2 entries under WAN table, may I know who is your ISP?

 

And what is the serial number of the router? You can tell me the first 5 digits numbers.

 

Good day.