Nortel BCM 3.7, Manual

Page: 537 / 1004

Using SL-1 with MCDN to network with a Meridian system 537
Programming Operations Guide
Using SL-1 with MCDN to network with a Meridian system
When you connect your Business Communications Manager systems through the SL-1 MCDN
protocol to a Meridian 1, the Meridian system manages several aspects of the network, including
voice mail, auto attendant services, and system timing.
Programming note: For information about networking voice over IP (VoIP) trunks, which also
can be set to use MCDN, refer to the IP Telephony Configuration Guide . For networks running
Business Communications Manager BCM 3.5 software or newer, the trunk protocol for
Meridian 1 IPT connection should be set to CSE.
This section includes the follow information about setting up an MCDN network:
• “Meridian system requirements”
• “MCDN networking checklist” on page 538
An example of an MCDN system and the Business Communications Manager programming to
support it, is given in
“An example of a private network with Meridian 1” on page 541 .
Meridian system requirements
When setting up networking with Meridian, the Meridian systems must provide the following:
• the correct software version to allow MCDN features (If your Meridian system administrator
cannot confirm this, call your technical support center (TSC) or 1-800-4NORTEL.)
The Meridian must provide the following:
— end-to-end signaling (option 10)
— message center (option 46) and an IVMS link (option 35)
— Meridian Mail link (option 77 and 85)
— basic Attendant Console Directory features (options 40, 45, and 83)
— ISDN PRI or ISDN Signaling link (option 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.