
Chapter 33 Private networking: MCDN over PRI and VoIP 337
BCM 4.0 Networking Configuration Guide
Meridian MCDN call features over PRI SL-1 lines
Besides the general MCDN features described in “Using the MCDN access codes to tandem calls”
on page 293, an MCDN connection with a Meridian 1 voice mail system, also provides some
special call features, which are listed in Table 76.
Message Waiting Indication
MWI allows the voice mail host system (Meridian 1) that is designated to receive messages to
notify a target telephone on the BCM of a waiting call, using the native MCDN MWI or MIK/
MCK message indicators on the Meridian telephones. This feature works for both Nortel and
third-party voice mail systems. Messages are received at a centralized location, to a predetermined
telephone, where they are processed and forwarded to the target telephone.
MWI allows the user to reply or call back to the message center. The procedure for retrieving
messages is described in the Telephone Features Handbook.
Figure 114 demonstrates how the Meridian responds when a call is forwarded to a CallPilot
mailbox.
Figure 114 Message waiting indication message
Table 76 MCDN feature enhancements
Centralized messaging • Message Waiting Indication
Centralized Attendant • “Camp-on” on page 338
• “Break-in” on page 339
BCM
Meridian 1 with CallPilot
MCDN
Telephone A
Telephone B
Call forwarded to CallPilot
Original call
Message
MWI message signal (over target line)
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