The document discusses various technologies used in hotel office desks and guest rooms including IP telephone systems, CAT-5 cables, DSL-style systems, VOIP, COVOICE, virtual concierge technologies, and self-service kiosks. It provides details on what each technology is, how it works, and the potential benefits and revenue opportunities they provide for both guests and hotels. Specifically, these technologies allow for improved communication, increased efficiency and cost savings, enhanced customer service, and opportunities for customer loyalty and repeat business.