As above - I look after a location who will be getting Vodafone VDSL with a Vodafone supplied HG659, Fibre will be available next year sometime.

I'd like to run an EdgeRouter as the main router, however still have the phone line working through the modem (I that that's how it works with Vodafone?).

The internet part of the setup is no issue at all - bridge mode with the HG659 works great. The potential issue is with the phone. Has anyone tested a HG659 in bridge mode, but left the voice part active and tested if it actually works?

Unfortunately I don't have a Vodafone VDSL connection I can use to test this with.

I guess the other issue going to be once Fibre is installed - are Vodafone able to 'provision' the voice to one of the ports on the ONT like Spark do? Or is it a requirement that their modem/router is used for voice?

Another possibility I guess once Fibre has been installed would be to setup a spare LAN port on the Edgerouter just for the Vodafone modem, to use essentially just for voice - is that something anyone has tried doing? 

I would just play with this and figure out what can and can't be done, but unfortunately don't have the ability to do that at the moment. 

Any info or thoughts would be much appreciated - what are people doing in this situation where they need a better router, but need to keep the voice part intact too. Thanks!