I recently connected a landline to my nbn modem. I got a dial tone and can make calls. However when I call back from my mobile the landline absolutely does not ring.
PS night mode or do not disturb is not on.
Thanks @Rucharushi I'm using exactly the same combination so can confirm it works well.
Can you log into the modem and click on the phone icon to see that your number appears in the incoming settings as per picture below.
Hi @Rucharushi it's looking more like a routing issue on the VOIP server end, one of the moderators will probably escalate this to engineering as you've done about as much fault finding you can on your end.