BIOS Magazine posted a review on the Demon Office Hub

Demon is not one to miss a bandwagon. Its Office Hub package (=A389.99 ex.VAT) combines a wireless ADSL Billion Modem/Router with the Demon Voice over Broadband VoIP solution. The package is geared towards small and home offices that require wireless connectivity, robust network security features and access to free or low cost Internet phone calls. No special VoIP handsets are required, either - you can use a standard analogue phone. Installing VOIP and wireless connectivity can be daunting for small business owners, therefore Demon has attempted to minimise the fear factor and designed a relatively easy to install and comprehensive package with technical support included. The Office Hub covers all the bases for SMBs - wireless, security, networking and telephony over the Internet - all in a highly
cost-effective package. The only downside is that the Billion BiPAC 7404VGP is relatively complicated to configure once you start delving into the realms of network VoIP.

Demon Office Hub Review