The IDT Group serves the Guest Management needs of the hospitality industry with high-value, customized database-driven solutions that support hotel and resort database and Internet marketing, sales, CRM, revenue management and operations. Established in 1988 with headquarters in Philadelphia PA, IDT has been providing these solutions to the hospitality industry for more than a decade. IDT currently serves the needs of more than 150 individual hotel and resort properties with its Guest Management Solutions.