Installation & Operation Manual 508 Document # LTRT-92224
Mediant 8000
38.7.1 Configuring the CAS/ISDN Application
The configuration of the CAS/ISDN application is spread across the Media Gateway
board and corresponding E1/T1 Trunks. In addition, the IUA/DUA application may be
configured as described in the following chapter.
To configure the Media Gateway board’s CAS/ISDN settings:
1. Click
to access the Media Gateway status screen.
2. Select the specific Media Gateway board.
3. In the Navigation pane, select PSTN and then in the configuration pane, click
PSTN Settings; the PSTN Settings screen is displayed.
4. In the CAS/ISDN Settings tab, configure parameters according to the table
‘Media Gateway board’s CAS/ISDN Parameters’ below.
Table 38-22: Media Gateway board’s CAS/ISDN Parameters
Parameter Name Type
Provisioning
Type
Description
Q.931 Relay
Mode
Enum
None, Activate
LAPD Messaging,
Q931 Relay To
Host, Layer 3 Is
IUA
Online
Defines whether Q.931 relay mode is
activated or not.
Q.931 relay is a new way to establish
or tear down a call in a Media
Gateway Host/channel architecture. It
is suitable for Users who need to
handle a complete Q.931 protocol at
the HOST level. Normally, ISDN call
operation is controlled by PSTN
library commands or events. In Q.931
relay mode, Users can get or send a
packet with Q.931 message
information to a specific trunk (LAPD
interface). Q.931 data is 'relayed'
directly between the link and Host.
Notice that PRI D-channel
Maintenance is still controlled by the
on-board ISDN stack.
No. of CAS Config
Files
Integer
0 – 1
Online Defines the number of CAS protocol
configuration files. When the CAS
protocol is not to be used, set this
parameter to 0.
Trunking To
Analog
Functionality
Mapping Profile
Enum
Disabled, MelCAS
Online Defines the Trunking to Analog
Functionality Profile.
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