OpenTable
SG
The Secret Behind OpenTables Real-Time Reservations
When you book a table on OpenTable.com, your reservation is
instantly recorded in the restaurant's computerized reservation
book - the same one the restaurant's host uses to track all
reservations. (It's the black terminal you may see when you arrive
at the restaurant.)
Unlike other "online" reservation services which rely on faxes or
table allocations, OpenTable has live Internet connections into the
restaurants themselves. So restaurant availability information is
up-to-date, and your reservations are confirmed.