By combining the functionality for Direct Inward Dialing (DID), Direct Outward Dialing (DOD), and toll-free trunks into one service, Bell Atlantic’s Flexpath service streamlines operations for PBX systems. Its use of digital links also guarantees higher-quality voice communications than are possible with analog links. 

The PBX operates as a central switching device that handles all the customer’s voice transmissions. The Bell Atlantic CO switches subscribers’ lines for local and long distance calling. The dedicated T-1 circuit that connects the PBX and the CO consists of 24 channels. This digital connection allows the voice signal to be reproduced precisely, eliminating the distortions and electrical interference that are part of analog 
transmissions. Users are able to configure their FlexPath connection on a line-to-line basis, selecting from one or more of these services: 

Direct Inward Dialing: Connects incoming calls to a specific 
PBX station without the assistance of an attendant. 

Direct Outward Dialing: Eliminates the need to go through a 
PBX operator (dialing “9”) to place outgoing calls. 

Toll-Free Service: Incoming calls on a toll-free line can be 
connected to either an attendant or directly to a specific station. 
 

• Enables users to increase efficiency and save money by having incoming calls handled automatically rather than by an attendant. 
• Eliminates purchase and maintenance costs that would otherwise be required for analog conversion equipment. 
• Assures reliability because service includes 24x7 monitoring and support.
• High quality of voice communications with clear reliable digital transmission.