Frequency PBX | Hospitality Telephone System for Hotels - Percipia: Frequency PBX delivers a reliable hotel telephone system built for hospitality. Manage guest calls, wake-up services, voicemail, and PMS integration seamlessly. Address: 4619 N Ravenswood Ave #204, Chicago, IL 60640 Phone: 800-806-0408 Company Name: Percipia Keyword: Hotel Phone System