<p>This is the engine room of the TIM system, and gives remarkable flexibility for administering
how your calls are costed.  They look quite complicated at first, but
looking a little deeper, things soon make sense.</p>

<p>Collectively, the pricing and dial code information is known as a tariff table,
and such a table exists for each network carrier.  In some cases, a
single network carrier may have more than one tariff table to cater
for its wide-ranging pricing structures.  Each table can be edited
separately, thus allowing complete flexibility in how the system
costs your calls.</p>