Notice of Sole Source Solicitation Solicitation Number: W50S7Z26QA007 This solicitation is issued by the159th Fighter Wing, NAS JRB - New Orleans, Belle Chasse, LA as a sole-source procurement to AT&T Enterprises, LLC under the authority of FAR 6.302-1 for the procurement of Direct SIP Trunking . While the Government intends to award a sole-source contract for this requirement, this solicitation is open to all responsible sources. Any interested vendor may submit a formal proposal in response to this solicitation. The Government will evaluate all proposals received prior to the closing date and time specified in this solicitation. Proposal Submission Deadline: 10 July 20, 2026 at 9:00 AM CST .