Nortel Networks BCM1000 - Manual (Page 77)

Chapter 1 Introducing the Business Communications Manager 77
Installation and Maintenance Guide
• Music on hold jack — The BCM1000 uses the Music on hold input to connect an external
music source that supplies a signal to held lines (music on hold) or telephone speakers
(background music). The input source can be any available radio or music source approved for
connection to the network.
For directions on setting up these features, refer to Chapter 14, “Installing optional telephony
equipment,” on page 227 . For regulatory information about hooking up an external music source,
refer to “Use of a Music Source” on page 6 .
MSC IP call processing hardware
If your system requires a high volume of IP telephones and/or more VoIP trunks you can adjust
your system to accommodate them. You have the option to switch DS30 channel 7 on the MSC.
By switching the channel from servicing a media bay module (the default), the system provides the
increased digital processing service to support your IP requirements.
• DS30 channels are internal communication paths controlled by the MSC. Each DS30 channel
provides a possible 32 signaling channels and 32 media channels.
— Two DS30 channels are exclusively dedicated to MSC resources. Five paths within these
channels have hard-coded applications. The other paths can be assigned to various
applications such as voice mail, dialup ISDN WAN, VoIP trunks, or IP telephony.
— Five DS30 channels are exclusively reserved for the media bay modules
— The sixth DS30 channel can be switched to accommodate media bay modules or more
channels for IP telephones or VoIP trunks. You control the use of the channel by your
choice of using either a 2/6 or 3/5 DS30 channel split. This is set when you run the Quick
Start Wizard at the initial startup of the system.
For more details about deciding which DS30 channel configuration you want for your
system, refer to
“Determining module channel requirements” on page 117 and to the
chapter on configuring MSC Resources in the Business Communications Manager
Programming Operations Guide.
• PEC IIIs — The BCM1000 uses PEC IIIs to deliver increased capacity for digital signal
processing for voice mail, call center, FAX, VoIP trunks, IP telephony, and dialup ISDN WAN.
The basic system comes with two PEC IIIs. Two more can be added to accommodate
increased requirements for media processing. Refer to the chapter on configuring MSC
Resources in the Business Communications Manager Programming Operations Guide.