Integrations to Hotel PMS and Channel Manager Bellebnb. We integrate with all the major online travel agencies (OTAs), including Booking.com, Ctrip and the Expedia network. OTAs, Meta Search, GDS, Wholesalers, Hotel Booking Engines, PMS, CRS, RMS. Bellebnb is a hotel management platform that includes a PMS, Channel Manager, Booking Engine, Concierge Service, and Payment Processor. Our platform will help you sell more rooms and improve revenue per booking by helping you upsell products and services, and encourage guests to return and book with you directly.