Caption service is provided by a ____ using voice recognition technology.

Caption service is provided by an entity utilizing voice recognition technology to transcribe spoken language into text, allowing individuals who are deaf or hard of hearing to access spoken communication in real time. This service is typically offered outside of primary public safety answering points (PSAPs), which are focused on receiving emergency calls and dispatching services.

The term "not PSAP" refers to organizations or systems that provide specialized services not directly related to emergency call handling, which is the function of PSAPs. These may include captioning services offered by third-party vendors or communication access services that are designed to enhance accessibility and inclusivity during conversations or public presentations.

While call centers and communication hubs serve important roles in public safety and communication, their primary focus does not typically include delivering caption services specifically enabled by voice recognition technology. This distinguishes the correct answer, as it recognizes the specific nature of the service and its provision outside the conventional framework of a PSAP.