Relay information faster with an all-digital voice line used mainly as voice trunks for Private Branch Exchange (PBX). ISDN-PRI has Direct Inward Dialing (DID) and Direct Outward Dialing (DOD) channels that adjust automatically and do not require any programming.
Can handle high volume traffic
With up to 100 DID
Needs no programming as DID and DOD channels adjust automatically
Increased productivity from multiple extensions
Cost efficiency through low rental and termination fee
Faster call connections with all-digital voice lines