Using this on Slingshot 100/20 UFB behind a Unify USG for home line + a VoIP business line (Slingshot iTalk) for 2 months and very happy with it. TL;DR: If you want a second VoIP line, have a UFB router without VoIP or want to have your phone base station located away from your UFB router then get this, otherwise, stick with what your ISP gave you. I'm not using it as a router and wouldn't recommend that, if you want an all-in-one router/ATA then stick with the one your ISP gave you. Also check that your ISP/VoIP provider will give you the SIP settings to set up your phone, it sounds like Vodafone don't looking at the other review. Pros: ...view more