Configuring The Cas State Machines; Figure 3-49: Cas State Machine Page - AudioCodes Mediant 2000 User Manual

Notes:
3.3.3.2

Configuring the CAS State Machines

The 'CAS State Machine' page allows you to modify various timers and other basic
parameters to define the initialization of the CAS state machine without changing the state
machine itself (no compilation is required). The change doesn't affect the state machine
itself, but rather the configuration.

To modify the CAS state machine parameters:
1. Open the 'CAS State Machine' page (Configuration tab > PSTN Settings menu >
CAS State Machines
2. Ensure that the trunk is inactive. The trunk number displayed in the 'Related Trunks'
field must be green. If it is red (indicating that the trunk is active), click the trunk
number to open the 'Trunk Settings' page (refer to ''Configuring the Trunk Settings''
page 73
3. In the 'CAS State Machine' page, modify the required parameters according to the
table below.
SIP User's Manual
•
If the 'Protocol Type' field displays 'NONE' (i.e., no protocol type
selected) and no other trunks have been configured, after selecting a PRI
protocol type, you must reset the device.
•
The displayed parameters on the page depend on the protocol selected
in the 'Protocol Type' field.
•
All trunks must be of the same line type (i.e., either E1 or T1). However,
different variants of the same line type can be configured on different
trunks, for example, E1 Euro ISDN and E1 CAS (subject to the
constraints in the device's Release Notes).
•
If the trunk protocol type is CAS, you can assign or modify a dial plan (in
the 'Dial Plan' field) and perform this without stopping the trunk.
•
If the trunk can't be stopped because it provides the device's clock
(assuming the device is synchronized with the E1/T1 clock), assign a
different E1/T1 trunk to provide the device's clock or enable 'TDM Bus
PSTN Auto Clock' in the 'TDM Bus Settings' page (refer to ''Configuring
the TDM Bus Settings''
•
To delete a previously configured trunk, set the parameter 'Protocol Type'
to 'None'.
•
A trunk cannot be deactivated if it has been stopped (by clicking the Stop
button).
page item).

Figure 3-49: CAS State Machine Page

), select the required Trunk number icon, and then click Stop Trunk
on page 161 ).
76
Mediant 2000
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Document #: LTRT-68809
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