NEVER LOSE A CALL. Complete mobility features allow automatic call forwarding of your office calls to your cell phone - just one way to enjoy this robust system that is loaded with features such as voice mail to email, call waiting, caller ID and more. Additionally, a dedicated standard app (no license or usage fees) will allow you to use your cell phone as an extension of your office phone system. A great standard feature that will save you time money when you're traveling outside your office..CHOOSE PHONE COMPANY LINES and/or VoIP phone Lines. The system supports connections of up to 4 standard telephone lines (provided by companies such as Comcast, Spectrum, Verizon Fios, Altice, Time Warner, Frontier, AT&T, CenturyLink, Cable One etc.) and the use of 12 SIP VoIP lines. 2 FXS ports allow for connections to standard cordless extensions or fax machines. Supports up to 16 concurrent calls. It also supports the use of remote, off-premises extensions with complete system functionality..FREE DIALTONE OFFER includes 1 year free Dialtone service for 2 lines. Free Offer Value of $48.45 per month or $581 savings for the entire year! Requires a fast internet connection (broadband – provided by customer) of the server to the internet. Both lines are limited to 3000 minutes/month of use to US and Canada destinations. The VoIP service is only available for end-users and not for resellers. Not intended for resale to a third party. You will need to contact us to activate your service.