Dialogic 6.2 Benutzerhandbuch

November 2009

428

A logical data entity that corresponds to a physical data line on a 

TDM bus.

The set of slots that comprises one T1 (24) or one E1 (30) line. The 

spans are numbered starting at 1.

Transmission Control Protocol

A logical entity that corresponds to one telephone call.

1. In telephony configuration files and functions, a unit is a 

hardware port on a Brooktrout board and is numbered starting at 0 

(to denote a TDM bus); from 1 to n (for a specific T1/E1 interface).
2. In some Bfv functions (e.g., BfvLineAttach), an ordinal channel 

number. Its range is 0...n-1, where n is the number of channels in a 

system.

Voice Activity Detection

One of the channels on a module that is available for 

non-administrative purposes as a result of downloading firmware. A 

module configured for 48 channels when firmware download is 

performed has 48 work channels and one administrative channel. 

Logical work channel numbers start at 2 on each module.