In this section:
The SIP DTMF Trigger Detection and Notification functionality enables the
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to look for specific DTMF trigger patterns and to notify an external SIP entity when such patterns are detected. If a mid-call trigger is configured for a call, it is activated as soon as the call is connected. When the Unable to show "metadata-from": No such page "_space_variables"
detects DTMF input matching the pattern criteria of the trigger, it sends the DTMF input in a SIP INFO message to the SIP call peer with content type application/dtmf.The values are:
- Egress
- Ingress
To View Dtmf Trigger
On SBC main screen, go to Configuration > Profile Management > Category: Dtmf Trigger Profile > Dtmf Trigger.
The Dtmf Trigger window is displayed.
Profile Management - Dtmf Trigger
To Edit Dtmf Trigger
To edit any of the Dtmf Trigger in the list, click the radio button next to the specific Dtmf Trigger name.
Profile Management - Trigger Highlighted
The Edit Selected Dtmf Trigger window is displayed below.
Profile Management - Dtmf Trigger Edit Window
The following fields are displayed:
DTMF Trigger
Parameter | Description |
|---|---|
| Specifies the DTMF name. |
| Specifies the administrative state of this dtmf trigger. |
| Indicates the pattern in digit-regular expression on which the Unable to show "metadata-from": No such page "_space_variables" should match. Multiple patterns can be strung together using "." If you do not enter a pattern value, S# is assumed to be the default. |
| Specifies the interdigit timer (maximum time between digits) in milliseconds. If 0 is specified, the timer is disabled. Must be 0 to 65535. The default value is 4000. |
| Specifies the duration in milliseconds for a digit to be considered long. If 0 is specified, long digits are disabled. Must be 0 to 65525. The default value is 2000. |
Make the required changes and click Save at the right hand bottom of the panel to save the changes made.
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