Create an ISUP Stack
To create an ISUP stack
1. Select ISUP from the navigation panel.
**2. Click 'Create New Stack' **
3. Provide a name for the ISUP stack
Select one Tmedia unit as the primary to run the ISUP stack for the Tmedia network.
Select another Tmedia unit as the secondary unit to run the ISUP stack
Click 'Create' to save the ISUP stack
4. Verify that the 'ISUP Stack was successfully created' message appears.
Description of parameters
These parameters are common to every other instance created afterward (i.e. networks, userparts, interfaces, circuits).
The timers have the following definitions; all timer values must be expressed in milliseconds):
T18 Timer
GROUP BLOCKING message sent. Terminated normally when GROUP BLOCKING ACKNOWLEDGMENT is received. Typical values are 15 to 60 seconds.
T19 Timer
INITIAL GROUP BLOCKING message sent. Terminated normally when GROUP BLOCKING ACKNOWLEDGMENT is received. Typical values are 5 to 15 minutes.
T20 Timer
GROUP UNBLOCKING message sent. Terminated normally when GROUP UNBLOCKING ACKNOWLEDGMENT is received. Typical values are 15 to 60 seconds.
T21 Timer
INITIAL GROUP UNBLOCKING message sent. Terminated normally when GROUP UNBLOCKING ACKNOWLEDGMENT is received. Typical values are 5 to 15 minutes.
T22 Timer
GROUP RESET sent timer. Terminated normally at the receipt of the acknowledgment. Typical values are 15 to 60 seconds.
T23 Timer
INITIAL GROUP RESET sent timer. Terminated normally when acknowledgment is received. Typical values are 5 to 15 minutes.
T28 Timer
CIRCUIT GROUP QUERY sent timer. Terminated normally when CIRCUIT GROUP QUERY RESPONSE message is received. When this alarm expires, an alarm is generated. Typical value is 10 seconds.
FGR Timer
ANSI and Telcordia FIRST GROUP received timer. A typical value is 5 seconds.
NOTE: ITU variants do not support FGR Timer. Therefore, the timer does not need to be configured for these variants.
NOTE: The following timers are not required for the UK: T28
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