DrayTek, Ubiquiti (EdgeRouter) or finally now the Firebrick.
I'm currently using my two DrayTek Vigor routers (2860Vac and 2862) as bridged modems primarily, though the 2860Vac is also using VoIP as it's connected to my house phones via an RJ11 cable, which then connects to the Firebrick's SIP server which then finally connects to AAISP's SIP server.
Another interesting fact, my UPS will maintain the following hardware for up to around 6 hours on battery:
- LED Light Strip (plugged in via USB to the FireBrick FB2900 if there's a power cut)
- Firebrick FB2900 (acting as a router and SIP server for VoIP)
- DrayTek Vigor 2860Vac (acting as a bridged modem and for VoIP, BT Advanced Z is connected to it via RJ11)
- DrayTek Vigor 2862 (acting as a bridged modem)
- Ubiquiti EdgeSwitch 16 150W
- Ubiquiti Amplifi HD (for wifi)
- Synology NAS RS815+ (for monitoring my VDSL2 stats on both lines and taking automated action if errors become excessive or minimal, recording the back garden and some internal cameras downstairs, and for being a network drive I guess)
- BT Advanced Z Base Station (DECT phones)
I know this because yesterday night I had a power cut and the battery estimated time on the front panel said between 5 to 6 hours
.