A SIP Paging Gateway is a network device that enables seamless integration between IP PBX / VoIP systems and public address (PA) or IP audio systems using the SIP (Session Initiation Protocol). It allows users to make paging announcements directly from IP phones, softphones, or communication platforms to speakers, amplifiers, or IP audio endpoints.

SIP paging gateways are widely used in offices, hospitals, factories, campuses, hotels, airports, and industrial facilities where centralized paging and emergency communication are required. These gateways support one-way or multicast paging, zone-based announcements, priority override, and emergency alert triggering. They integrate smoothly with SIP IP speakers, IP amplifiers, IP audio servers, and fire alarm systems (FAS).

By bridging VoIP and PA infrastructure, SIP paging gateways provide a cost-effective and scalable solution for modern IP-based paging and voice alarm deployments, enabling reliable communication across distributed locations.