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Features
Trunk Group Features
DEFINITY ECS offers an array of features for managing trunk groups efficiently.
DS1 Trunk Service
Digital Multiplexed Interface
Supports two signaling techniques:
ISDN — General
Gives you access to a variety of public and private network services and facili- ties. The ISDN standard consists of layers 1, 2, and 3 of the Open System Inter- connect (OSI) model. DEFINITY ECS can be connected to an ISDN using standard frame formats: Basic Rate Interface (BRI) and the Primary Rate Inter- face (PRI).
An ISDN provides
R6 BRI Trunk Enhancements
Adds support for
BRI: Basic Rate Interface. This standard ISDN interface consists of two 64 Kbps
ISDN: Integrated Services Digital Network.
NT Interface on TN556C
Support for the NT (network) side of the T interface has been added in R6 using the TN556C circuit pack, which DEFINITY R5 uses only for voice and data end- points. This gives R6 full tie trunk capability using BRI trunks. R6 supports leased