Specifications include, but are not limited to: 1. Two-way communication between any administrative phone and any classroom speaker. 2. Replacement classroom intercom speakers. 3. Replacement of local classroom amplifier. 4. Master Clock with web based programming functionality shall be fully connected to the CPS network and web functionality tested. Bell schedules, and timed events to sync to PA. CPS staff will provide appropriate network information to facilitate final connections. 5. Master Clock system is the authoritative time source. Any PS system or existing clock equipment should be subordinate to it. 6. Hallway digital clock system which integrates seamlessly to PA system in the event older clock system is not compatible. 7. Administrative master phone in main office and intercom rack. 8. Full integration/compatibility with Cisco VOIP and/or analog phone systems.