This is a delivery order awarded to AT&T Corp. by the Defense Information Systems Agency (DISA) under the DISA Global Network Services Indefinite Delivery, Indefinite Quantity (IDIQ) contract. The contract has a firm fixed price of $778,252.71 and will provide voice over internet protocol (VoIP) telephony, session initiation protocol (SIP) trunking, and related network services to support critical communications requirements in Qatar. The contract has a period of performance from May 31, 2018 to June 13, 2021 and was not set aside for any special business categories. As the parent company, AT&T Inc. has also provided telecommunications equipment and services as a subcontractor on other federal contracts with Leidos, Inc. and Raytheon Company.