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Trunk Group Features
Issue 5 January 1998
A-53555-230-024
BRI connections through the public network, with a TN2185 on each end of the
leased connection. R6 will not, however, allow customers to administer both end-
points and trunks on the same TN556C circuit pack.
NT QSIG Peer Protocol
The NT side of the QSIG Peer Protocol has been added.
Full ETSI Functionality
The full set of ETSI public-network and private-network ISDN features is officially
supported. This includes Lookahead Interflow, Lookahead Routing, and Usage
Allocation (including the R5 enhancements). It also includes all QSIG supple-
mentary services supported through Release 6:
■ Name Identification
■ Call Diversion (including rerouting)
■ Call Transfer
■ Path Replacement.
It does not include
■ DCS
■ Non-Facility Associated Signaling
■ D-Channel Backup,
■ Wideband Signaling.
Automatic TEI
The user side will support automatic TEI assignment by the network. Both fixed
and automatic TEI assignment will be supported on the network side.
TEI: Termination Endpoint Identifier (part of ISDN terminology).
Layer 1 Deactivation
Layer 1 Stable — Tells call processing and maintenance software whether to
expect the network to drop Layer 1 when the BRI port is idle. When acting as the
TE side, R6 supports the case where the network deactivates Layer 1 when both
B-channels of a BRI port are idle. When acting as the NT side, R6 deactivates
Layer 1 only when the BRI port is busied out.