This is a solicitation for the installation and delivery of a fiber commercial circuit and associated equipment to provide Session Initiation Protocol (SIP) services. The work is to be performed at Barksdale AFB, located along Barksdale Blvd, and the contract includes a one-year base period with four one-year option periods. The requirement is for services supporting 120 concurrent call paths, 15,000 base numbers, and includes 36,000 free off-net call minutes per month. The award will be determined by a best-value evaluation considering price and technical factors.