GLOSSARY
Covering User
The person at an alternate answering position who answers a redirected call.
Data Channel
A communications path between two points used to transmit digital signals.
Data Communications Equipment (DCE)
Refers to a specific RS-232C interface connector configuration. The DCE devices are designed to interface directly (pin-for-pin) to Data Terminal Equipment (DTE). The transmit and receive pins are reversed from that of a DTE interface. A modem is an example of a DCE device.
Data Dial Code (DDC)
The extension number of a digital data endpoint.
D a t a E n d p o i n t
Two general groups: those having a DTE-type interface, which encompasses almost all of the data terminal devices, and those having a DCE interface, which are primarily modems. It should be noted that within each category, control interfaces may vary. Refer to Analog Data Endpoint and Digital Data Endpoints for additional information.
D a t a M o d u l e
A DCE device providing a standard interface between data equipment and a TN726 Data Line CP port on the switch. Only ADU Models Z3A1, Z3A2, Z3A4, and Z3A5 are supported.
Data Terminal Equipment (DTE)
DTE refers to a specific RS-232C connector termination designed to connect directly to a DCE-type connection. Typically associated with video display terminals, printers, and computers that either originate or terminate a data transmission path.
