297Networking Configuration GuideChapter 32Private networking: MCDN over PRI and VoIPThe following describes how to network BCMs together in a private network using PRI lines withMCDN protocol. When BCMs are networked with other call services, such as Meridian 1, usingthe MCDN protocol, the network can also support centralized voice mail.This chapter discusses MCDN networking based on North American trunks (PRI SL-1).ETSI-QSIG private networking is configured very similarly, although network features may besupported slightly differently.The following describes the different aspects of MCDN private networking.• “Using MCDN to network with a Meridian system” on page 297• “Configuring fallback over a VoIP MCDN network” on page 311• “Networking with ETSI QSIG” on page 313Refer to “Private networking: Basic parameters” on page 315 for general requirements anddirections for setting up non-PRI private networks.Using MCDN to network with a Meridian systemWhen you connect your BCM systems through the MCDN protocol to a Meridian 1, the Meridiansystem manages several aspects of the network, including voice mail, auto attendant services, andsystem timing.Programming note: For information about networking voice over IP (VoIP) trunks, which alsocan be set to use MCDN. For networks running BCM 1.0 software or newer, the trunk protocol forMeridian 1 IPT connection should be set to CSE.The following information includes how to set up an MCDN network:• “Meridian system requirements”• “MCDN networking checklist” on page 303For an example of an MCDN system and the BCM programming to support it, refer to “Anexample of a private network with Meridian 1” on page 307.Meridian system requirementsWhen setting up networking with Meridian, the Meridian systems must provide the following:• provide the correct software version to allow MCDN features. If your Meridian systemadministrator cannot confirm this, call your technical support center (TSC) or1-800-4NORTEL.
