Lucent Technologies 555-670-116 manual MERLIN LEGEND Communications System Release, Issue, April

MERLIN LEGEND Communications System Release 7.0	Issue 1
Pocket Reference 555-670-116	April 1999
Release 4.0 Enhancements (March 1996)	19

ISDN Ordering Code (IOC) Package “S” (basic call handling) service configuration and Multiline Hunt service configuration on designated central office switches.

■New Control Unit Modules

Release 4.0 supports a new NI-BRI line/trunk module and a higher-capacity tip/ring module.

■800 NI-BRI Module

This new module connects NI-BRI trunks to the MERLIN LEGEND System for voice, high-speed data, and video transmission.

■016 Tip/Ring Module

This new module supports a 200-extension dial plan by providing 16 ports for tip/ring devices. Applications that use a tip/ring interface can connect to this board. All 16 ports can ring simultaneously. Four touch-tone receivers (TTRs) are included on the module as well. The module’s ringing frequency (default 20 Hz) can be changed, through programming, to 25 Hz for those locations that require it.

■Downloadable Firmware for the 016 (T/R) and NI-BRI Modules

The Personal Computer Memory Card International Association (PCMCIA) technology, introduced in Release 3.0, continues to support these two modules for installation and upgrade in Release 4.0. A Release 3.0 or later processor is required for PCMCIA technology.

■Support for 2B Data Applications

A Lucent Technologies-certified group and desktop video application can use two B-channels to make video/data calls when connected to a single MLX extension jack programmed for 2B data. The 2B data devices must be equipped with ISDN-BRI interfaces. NI-1 BRI, PRI, or T1 Switched 56 facilities support 2B data communications at 112 kbps (using two

56-kbps channels) or 128 kbps (using two 64-kbps B-channels). This feature is available for Hybrid/PBX and Key modes only.

■Support for T1 Switched 56 Digital Data Transmission

For Hybrid/PBX and Key mode systems, Release 4.0 expands support of T1 functionality by providing access to digital data over the public switched 56-kbps network, as well as to digital data tie-trunk services. Users who have T1 facilities for voice services can now use them for video or data calls at rates of 56 kbps per channel (112 kbps for video calls using 2B data). The Release 4.0 offering also includes point-to-point connectivity over T1 tie trunks, allowing customers to connect two MERLIN LEGEND Communications Systems or a MERLIN LEGEND Communications System with a Lucent Technologies DEFINITY G1.1 Communications System or DEFINITY Enterprise Communications Server. The two communications systems can be co-located or can be at different sites.