Nortel BCM 3.7, Manual

Page: 615 / 1004

Rules for managing the MSC resources 615
Programming Operations Guide
Rules for managing the MSC resources
The following rules are provided to assist you in configuring your MSC resources.
• “Signaling channel rules” on page 615
• “Media channel rules” on page 615
• “DSP resources rules” on page 617
• “Voice bus path” on page 617
• “Media gateways” on page 618
Signaling channel rules
Signaling channels are the MSC resource that determines how many IP telephones you can
connect to your system. If you have a system that does not use IP telephones, the number of
signaling channels does not affect your configuration.
• The total number signaling channels available to the MSC depends on the DS30 split you have
configured. For information about how to view and change the DS30 split, refer to
“Changing
the DS30 Split” on page 633 .
If you have a 2/6 DS30 split, the total number of signaling channels is 64.
If you have a 3/5 DS30 split, the total number of signaling channels is 96.
• Management functions use six signaling channels.
• Dial-on-Demand ISDN WAN uses 27 signaling channels.
All 27 signaling channels are used, regardless of the number of WAN channels configured.
• Voicemail requires one signaling channel for each voicemail port enabled. You can enable up
to 32 voicemail ports.
Both voicemail and call center use Voicemail ports.
• IP Telephony clients require one signaling channel for each IP telephone connected to the
system.
• IP Telephony trunks require one signaling channel.
Only one signaling channel is required regardless of the number of IP Telephony trunks
enabled.
• IVR requires 1 signaling channel for each IVR port enable.
• Up to 24 ports enabled. Maximum of 32 ports between IVR and voicemail.
Media channel rules
The media channels are used to transport voice and data signals between devices.
• Management functions use five media channels. These five channels are reserved for
management functions and are always in use.
• Dial-on-Demand ISDN WAN uses 27 media channels.
All 27 media channels are used, regardless of the number of WAN channels configured. The
maximum number of WAN channels is 16.