Requirements: Must have a windows based network. Must have a Windows 2008 to 2016 server. Must have an external internet connection with at least 1Mb upload bandwidth. Must have a Active Directory system in place Must have a TCP/IP v4/v6 network Must have CAT5 cable to each node Must have switch network that supports Cisco VLAN's Must have PSTN lines coming inward from telco Solution consists of the following: Cisco Business Edition 4000. (Cisco BE4000) Cisco Device for call control Cisco Phones This solutions is fully customized on a per customer basis Solution is subscription based Assessment of customer system needed before solution can be proposed.