
98 Chapter 5 Configuring application resources
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Changing the DS30 split
A DS30 bus is a group of 32 signaling channel and 32 media channels. The DS30 split determines
how these channels are assigned on BCM.
You have a choice of a 2/6 or a 3/5 split. If you choose a 2/6 split, two DS30 buses are assigned to
the MSC and six are assigned to the Media Bay Modules. If you choose a 3/5 split, three DS30
buses are assigned to the MSC and five are assigned to the Media Bay Modules.
The split you choose is determined by the number of signaling channels you require for
applications such as voice mail, IVR, IP trunks, IP telephones, and dialup ISDN WAN
connections. If you need 58 signaling channels or less for these applications, use a 2/6 DS30 split.
If you need 59 signaling channels or more, use a 3/5 DS30 split.
If your signaling channel requirements change, for example you want to increase the number of IP
telephones, you can change from a 2/6 setting to a 3/5 setting without losing data. All new records
added after the update will reflect the new default settings. To determine what the channel
requirements are, refer to “Determining the resources you require” on page 88.
IVR Ports IVR ports are communication channels that connect users to the IVR Software.
DSP resources are required only when a user connects to IVR. This includes callers hearing
greetings, callers leaving messages, and users accessing their mailboxes.
The minimum value for IVR Ports must be 2 or higher, unless you want to disable IVR.
The maximum value for IVR Ports must be 2 or higher, unless you want to disable IVR.
To disable IVR, change the minimum and maximum values for IVR Ports to zero.
CTE Ports CTE ports are communication channels that connect CTE applications to the BCM. An example
of a CTE application is BCM Personal Call Manager.
Warning: Ensure that the system is idle before you perform this procedure. You must
restart the system after you have changed the setting.
Note: Ensure you have a current backup before you perform this procedure.
Note: You must ensure that your system has adequate DSP resources to support an
increase in voice processing traffic. To determine if you have enough DSP resources, refer
to “Determining the resources you require” on page 88. If you need to add MS-PEC IIIs,
refer to the BCM200/400 4.0 Installation and Maintenance Guide (N0060612) for
installation instructions. Refer to the BCM sales catalogue for part numbers and ordering
instructions.
Table 18 MSC custom configuration parameters (Sheet 2 of 2)
Component Description
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