Nortel BCM 3.7, Manual

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Programming Operations Guide
Chapter 20
Configuring private networks with SL-1 MCDN
This section describes how to network Business Communications Managers together in a private
network using PRI SL-1 lines with or without the MCDN protocol. When Business
Communications Managers are networked with other call services, such as Meridian 1, using the
MCDN protocol, the network can also support centralized voice mail.
This chapter discusses SL-1 and MCDN networking based on North American trunks (PRI SL-1).
ETSI-QSIG and DPNSS private networking is configured very similarly, although network
features may be supported slightly differently. Private networking and network features on these
trunks is described in
“Configuring ETSI QSIG and DPNSS network services” on page 547 .
The following section describe the different aspects of SL-1 and MCDN private networking.
• “System numbering plans” on page 524
• “Creating tandem private networks” on page 524
• “Understanding MCDN network features” on page 532
• “Using SL-1 with MCDN to network with a Meridian system” on page 537
• “MCDN networking checklist” on page 538
• “VoIP networking” on page 544
Refer to the previous chapter “Configuring private networks” on page 509 for general
requirements and directions for setting up non-PRI private networks.
TIPS: Most of the diagrams in this section use the BCM1000 base unit. The BCM400 and
BCM200 can be used in any of these situations, as well. Keep in mind that the BCM200 only
supports two PECs, and therefore, has less processing capacity than the other two units. This
affects both networking and IP telephony deployment.
The type of network you require depends on the equipment you are networking to, and how you
want to use the network.
• You can tie a set of Business Communications Manager systems together to create a tandem
network. This type of network provides the additional advantage of providing private line
access to local PSTN
s for all the nodes on the network.
• You can tie one or more Business Communications Manager systems to a Meridian 1 system
and use the Meridian voice mail or auto attendant system for centralized call management, as
well as providing reduced toll calling across the private lines.
You require PRI and MCDN keycode s to create either of these networking configurations.
Note, however, that to use the MCDN features, your network must include a Meridian system as a
controlling system.