Lucent Technologies 555-661-150 manual Issue

MERLIN LEGEND Communications System Release 6.1	Issue 1
Network Reference 555-661-150	August 1998

2Call-Handling Scenarios

Networking Guidelines Page 2-4

MERLIN LEGEND Communications System extension in a private network. Although the MERLIN LEGEND Communications System can be programmed to drop digit(s), it is recommended that in networks with DEFINITY ECS or DEFINITY ProLogix Solutions use 4-digit dial plans. The next topic provides additional details.

■When planning non-local extension ranges, Primary Rate Interface (PRI) dial-plan routing and Direct Inward Dialing (DID) numbers must be considered. If calls are routed across the private network to these numbers, they also must not conflict with extension ranges in other private network systems. In addition, UDP routes must specify correct digit manipulation (deleting or adding digits). When such calls are routed to

5-digit DEFINITY ECS or DEFINITY ProLogix Solutions systems, special considerations apply. See the next topic for details.

■A centralized VMS/AA is subject to the following configuration requirements and constraints:

—A DEFINITY ECS or DEFINITY Prologix cannot share a centralized VMS/AA with a MERLIN LEGEND system.

—The hub system and all remote systems sharing a centralized VMS/AA must be MERLIN LEGEND Release 6.1 or later systems.

—Each MERLIN LEGEND system must be configured as Hybrid/PBX.

—Networked MERLIN LEGEND systems that are not directly connected to the “hub” system (more than one span away) cannot share the centralized VMS/AA.

—More than one centralized VMS/AA can be configured in a single private network. More than one centralized VMS/AA can be installed on a single MERLIN LEGEND system.

—Any MERLIN LEGEND system may also have a local VMS/AA system that is not shared.

—Each extension in the system can have only one voice mailbox, no matter how many VMS/AA systems are available.

—Only the following voice messaging systems are supported for centralized VMS/AA:

■MERLIN LEGEND Mail

■Messaging 2000

■Intuity AUDIX

■IS-III AUDIX Voice Power (no longer orderable)

—A Uniform Dial Plan (UDP) must be established for the private network.

—All trunks within the private network should have unique trunk numbers. This allows the centralized VMS/AA to provide different call handling and/or greetings based on the trunk on which the call was received.