XConnect, a provider of numbering intelligence solutions, has announced a partnership with IDT Global, the wholesale voice and SMS subsidiary of IDT Corporation.    The partnership will see IDT Global utilize XConnect’s RealNumber DNO database, which contains over 6 billion local and toll-free numbers in North America, in order to enhance its customers’ voice experience and protect them from fraudulent calls.   The RealNumber DNO contains numbers that should never be used for call origination, assisting in the prevention of telecom fraud on known inbound-only and invalid numbers. By accessing the RealNumber DNO, IDT Global will be able to identify invalid calls and increase the quality of its traffic. This database is updated daily and includes North American toll/local and toll-free lines, providing IDT Global with a complete and trustworthy additional layer of defense in its role as a gateway operator.   The collaboration also further expands XConnect’s optimization of…