Specifications include, but are not limited to: Unified Communications voice system with sufficient capacity to serve the entire SCPS District using Virtual Machines of Server Farms in the SCSP NOC Data Centers Secure VoIP and SIP voice terminals and soft Clients with Local Survivability using SIP Cloud service providers for PSTN and third-party voice services. Open Systems integration through SIP and other means necessary to leverage existing or new voice communications related applications including email, directory, and others. Web based Central systems administration and management solution that integrates with our existing cyber security and Network Management Systems (NMS) for secure remote access and alarm monitoring with notification through email. Voice mailbox with email integration and notification that includes a playable message in the email file using an SCSP approved wav or similar type audio file. Mobile Application and Softphone that can run on the SCSP approved desktop Client PC image and allows users to make calls with caller-id of the school, or approved by the school