Hotel Telephone Integration | Hotel PMS Interface | Hotel PBX Interface – Percipia; Parallax is an industry-leading hotel system interface that supplies a comprehensive suite of features to your existing hotel telephone system for a superior hospitality experience. Supports Opera PBX Interface, Agilysys LMS, Visual One, Versa, Hilton OnQ, Marriott Lightspeed, Infor, Stayntouch, Maestro, Jonas, and Springer-Miller SMS integrations.