RingCentral Office^TM hosted business phone service claims to provide everything you need for your home or small office, with "Plug & Ring" simplicity for only $99.99/month. Further, there are no additional hardware required and no setup or cancellation fees. Some features;

4 phone lines with unlimited calling

• 4 phone lines that can be setup in one or multiple offices
• Add additional lines starting at only $4.99/month
• Free, unlimited inbound and outbound calling within the US and Canada
• Local numbers with area codes of your choice
• Each phone line includes voicemail, call forwarding, web-based call management and more

Hosted phone and fax service

• Auto-receptionist, dial-by-name directory, greetings, music-on-hold, message alerts, Outlook integration and more.
• Select a toll free or vanity number for your business for no additional cost
• Internet fax with a dedicated fax number
• 1000 minutes/month included FREE. Applies to main toll free number, Internet faxing and hosted phone service usage.

Ready to use Linksys IP phones

• Linksys SPA922 IP phones for only $59.99/phone (additional cost)
• Phones arrive fully configured and ready for use in 3-5 business days - plug and ring
• Speakerphone, caller ID, call hold, conferencing and more
• Includes extra Ethernet port so no router or adapter needed

Advanced call and fax management

• Configure and manage your entire service online
• Add additional numbers via the web, no sales rep required!
• Real-time call control with a virtual phone on your desktop 

Seamless activation and hassle-free setup

• Easy setup for all employees, whether local or remote
• Instantly set up multiple and satellite offices
• No PBX to buy or maintain
• No setup or activation fees