
336 Chapter 33 Private networking: MCDN over PRI and VoIP
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— Meridian Mail link (options 77 and 85)
— basic Attendant Console Directory features (options 40, 45, and 83)
— ISDN PRI or ISDN Signaling link (options 145 and 146 or 145 and 147)
— advanced ISDN features (option 148)
— network message services (option 175)
• act as the timing master for the private network connections
• use descending mode for PRI B-channel selection
• recognize dial codes for all nodes in the network
• provide routing tables that direct incoming calls to the correct nodes on the network, including
DID calls from the public network
• recognize the destination code (usually 9) that indicates a public network call, regardless of
where in the network the number was dialed from
Software requirements
These additional software packages may be required to activate all the options on the Meridian.
For a new M1 (option 81C, 61C or 51C) on X11 Rls 25, the following additional packages are
required to provide the software options listed above:
• SW0059B
• SW0052D
• SW0221C
• SW0051B
For a new M1 Option 11C or 11C Mini or X11 Rel. 25, order one of the following:
• Enterprise software package
• NAS/VNS software package
Note: For MCDN over VoIP trunks, the Meridian uses the IPT trunk
card. Both systems must have remote gateways pointed to correct system
types and protocols. Refer to “Configuring VoIP trunk gateways” on
page 415 for information about Remote Gateways for the BCM system.
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