This feature provides the capability for a OpenScape 4000 customer
the ability to access a wide range of U.S. public network calling services
and supplementary services via a PRI access interface. The US PRI protocols
supported are:
- for LEC-access (Local Exchange Carrier): ATT4ESS and NI2
- for IEC-access (Inter Exchange Carrier): ATT4ESS, MCI-DMS250, MCI-DEX600,
SPRINT-DMS250