Direct connect a.k.a DC a.k.a Point-to-Point Conference. A direct connection between two parties without the use of a videochat room. Often refered to as one-on-one or 1:1.

A direct connect is an interconnection between a transmission facility and a customer where the connection allows the transmission company to directly serve the customer without using any local distribution system facilities. The direct connect customer would typically pay less for service because they would avoid any LDC charges.

Permanent connection to the Web, probably a leased line.