The Department of Defense, specifically the Naval Air Warfare Center Aircraft Division, is seeking information from industry regarding the provision of Commercial Voice over Internet Protocol (VoIP) services. The objective is to acquire a non-developmental or Commercial off the Shelf (COTS) VoIP system that will support the NGB Joint Incident Site Communications Capability (JISCC) system, capable of serving up to 900 users across all 50 U.S. States, Guam, Puerto Rico, and the U.S. Virgin Islands. This VoIP solution is critical for ensuring secure and reliable mobile communications, meeting Department of Defense security requirements, and providing essential features such as Direct Inward Dialing, call ID, voice messaging, and E911 services. Interested parties must submit their responses by November 6, 2024, to Trevor Greig at trevor.m.greig.civ@us.navy.mil, with a maximum of ten pages detailing their capabilities and solutions.