Haven't tried it myself, but this official-seeming website suggests that you can schedule a test call ahead of time with your local 911 call center. https://ww

Haven't tried it myself, but this official-seeming website suggests that you can schedule a test call ahead of time with your local 911 call center. https://www.911.gov/calling-911/frequently-asked-questions/#faq-title-96cbf5ac-8efc-4659-802a-1ff96e8ea71b https://www.911.gov/calling-911/frequently-asked-questions/#...