The PRI ISDN services must provide access to the Public Switched telephone network for inbound and outbound local and long distance calling. This service must be compatible with the existing hardware interfaces on the Mitel PBXs located throughout the District, and provide the same level of service. Complete RFP information may be found at: http://mpsportal.milwaukee.k12.wi.us/portal/server.pt/comm/vendors/312/e-rate/38270.