With an Allworx IP phone and an Ethernet (broadband) connection, you can: Be a virtual extension of the office; Talk to any office site with an Allworx system; incur NO long distance charges. Change your personal settings from any location. Multi-site, With Allworx phones and an Allworx system in each of your office locations, you can: Incur NO long distance charges between sites; Merge multiple sites with one system; Transfer calls between sites the caller will never notice; View BLF activity and company directory across multiple sites; Follow-Me Calling at your fingertips.You can change your call routing presence instantly, using: Your phone; Your voicemail; Your PC; Your smartphone (iPhone & Android supported); Phones that lower your costs. Lower purchase cost. The Allworx phones save you money compared to other IP phones that have fewer features. No increased cost for remote phones. There are no additional license charges required to set up a phone remotely. No site-to-site long distance charges. With Allworx phones and an Allworx system in each of your office locations, you incur NO long distance charges between sites. Reduced wiring and installation costs. Our built-in switch even lets you use your PC's existing Internet connection for your phone, reducing wiring costs and installation time.