Lucent Technologies 555-230-024 manual Network Connections

Connections to ECS

Network Connections

Lucent Technologies has been a leader in providing compatibility with the Q-SIG global networking protocol. This means you can connect the DEFINITY ECS with other switches throughout the world. Q-SIG Global Networking was developed to comply with the Q-SIG standards developed by the European Computer Manufacturer’s Association and the International Standardization Organization. It supports the ISDN-PRI connection from switch to switch as long as both systems support the same protocol options.

Lucent Technologies supports both T1 and E1 lines. As industry standards around the world, T1 and E1 provide the latest alternative to analog trunking. T1/E1 access and conversion allows simultaneous connection to both T1 (1.544 Mbps) and E1 (2.048 Mbps).

DEFINITY ECS’s support of ISDN-PRI, ISDN-BRI, and available public network services means that you can achieve full end-to-end ISDN connectivity and take advantage of ISDN services and features. The system provides complete ISDN support in one system for small systems with 20 telephones up to large systems with over 25,000 telephones.

DEFINITY ECS also supports connection to an Electronic Tandem Network. Dif- ferent Electronic Tandem Network locations are connected via analog or digital tie trunks. For example, a T1 or E1 interface can act as a high-speed digital backbone for voice and data communications between Electronic Tandem Net- work locations.

For Distributed Communications System (DCS) network connections, tie trunks interconnect the switches that serve the DCS complex. The tie-trunk network may be configured as a tandem tie-trunk network, a main/satellite/tributary network, or an Electronic Tandem Network. The links connecting a Distributed Communica- tion System may also be provided across a Software Defined Network. To sup- port DCS customers who also have ISDN-Primary Rate Interface, DEFINITY ECS can transport DCS messages over ISDN-Primary Rate Interface D channels. As a result, you are no longer limited to private-line connections between your various locations. You can also use public network services.

DEFINITY ECS’s support of wideband signaling allows the system to handle applications with transmission rates greater than 64 Kbps in a single call. This includes videoconferencing, Local Area Network bridging, and other wideband applications. The system switches wideband data at N x DS0 data rates — a standard for international networking.

For more information, see Chapter 12, "Networking Solutions".

555-230-024 Issue 5 January 1998 1-25