Chapter 2 Overview of BCM50 Administration 25
BCM50 Administration Guide
All of the BCM50 main units provide call processing and data networking functions. They also
provide connections for telephones, as well as LAN and WAN connections. You can install
MBMs to provide connections for Public Switched Telephone Network (PSTN) lines. For detailed
information about the main units, see the BCM50 Release 2.0 Installation and Maintenance Guide
(NN40020-302).

Expansion units and media bay modules (MBMs)

In addition to the main unit, the BCM50 system can have up to two BCM50 expansion units. An
expansion unit connects to the main unit and provides additional functionality.
The BCM50 expansion unit is designed to accomodate one media bay module (MBM) that enables
you to connect addtional telephony equipment to the BCM50 system. The MBMs connect with
external devices to implement various types of voice trunks and stations. For detailed information
about expansion units and MBMs, see the BCM50 Release 2.0 Installation and Maintenance
Guide (NN40020-302).

BCM50 applications

BCM50 supports many high-value applications.
You enable applications by entering the appropriate keycodes. Some applications are:
• Voice Messaging for standard voicemail and autoattendant features
• Unified Messaging providing integrated voicemail management between voicemail and
common email applications
• Fax Suite providing support for attached analog fax devices
• Voice Networking features
• LAN CTE
• Digital Mobility (additional hardware is required)

Management Model

Whether BCM50 is being installed as a standalone element, is part of a network of many BCM50s,
or is part of a network encompassing both BCM50s and other devices, it is necessary to be able to
perform a range of administrative tasks to keep the system (or systems) providing the services
which they were deployed to provide.
The individual or organization responsible for performing the administration of the system needs
to be able to do some or all of the following types of tasks:
• monitor to validate that the system is healthy. For example, power is available, services are
running, CPU and memory are within a normal operating envelope
• monitor for fault conditions
• monitor link status and utilization
• system programming is consistent with the requirements of the services
• backups are being kept of the configuration