I would like to replace my fiber ISP’s router (Mitrastar HGU GPT-2541GNAC) with a Mikrotik router (I’m considering the hAP ax³) and an independent ONT (thinking about Ubiquiti Fiber Nano G). My ISP (Spain’s O2) provides me with Internet access and landline telephone.
How would one go about having landline telephone be usable with a hAP ax³ or some other Mikrotik router? Where does one even plug the telephone cable? If possible, I’d prefer disconnecting the HGU altogether instead of having it in bridge mode to manage the landline. I have found countless guides on how to configure other routers that, like the HGU, has an R11 out port for the telephone cable, for that specific ISP, but nothing about specifically switching to a Mikrotik hAP ax³ + Ubiquiti Fiber Nano G.
I am only moderately familiar with Mikrotik, RouterOS and general networking topics (my point in changing the setup is to learn), so this might prove a hard challenge for me, but I thought about asking anyway.
Hmm facing a similar problem except the provider gives phone/tv/internet from their modem/router device.
I think I have found a way to keep the TV and phone through their device and then use internet through the HAPAx3.
THis simplifies life as it gets harder when you start monkeying with TV and phone connectivity.
As others already noted: you need a VoIP-to-POTS gateway to connect your plain old phone. ISPs usually provide ONT/router devices which include one, none of MT devices does. Another possibility is to fetch a VoIP phone and then properly configure router to pass VoIP (usually it’s a separate VLAN). This part then becomes very similar to passing IPTV.
finding a GPON module that actually works with any particular MT device model is a hard thing. ROS support for 3rd party modules is less than satisfactory (to put it mildly). GPON modules in particular need additional support (to set GPON-specific paraneters) which is not offered in ROS either.
getting correct settings required by your GPON provider … ONT devices are considered as termination point of provider’s network and replacing that piece of equipment is considered as invasion into (if not breach of) their network by network operators. And as such it doesn’t fall into “free choice of customer’s equipment” category, protected by (EU) laws.
So I guess the best you can do is what @anav mentions: use ISP’s gadget to terminate FO (ONT function) and deliver phone and IPTV services. Try to put it into “bridge mode” for data service and use your own router as router and firewall.