Hi Matt,

I use a Fritz!Box at the moment.

It has some issues with the DSL Modem (see my review on here) so I use in ATA mode.

The VoIP functionality is quite rich - the best I have found so far:

• 2 FXS lines
• 1 FXO or ISDN line
• Ethernet or USB connection
• 10 SIP accounts
• each SIP account can ring both, either or neither phone.
• Comprehensive dialling rules to switch dialling over any of the 10 SIPs or PSTN. (I set 0800, 999 and 100 over PSTN always)
• Auto area code and IDD preprend
• Call blocking
• Night Service
• PSTN passthrough on internet failure (you get a warning beep)
• Call through (call your box from your mobile, say, and make calls over VoIP)
• caller id, call waiting, 3 way calling, other line call pickup, plus loads of other stuff you get on a full PBX.
• Even a baby monitoring service!

Not really in wide use here, but worth a look - just don't use it as a modem yet.

Have a look at it at DSL, ISDN, Bluetooth, WLAN, VoIP.