It sounds like you are referring to Dialer Delay correct? This is a global delay period after an alarm is triggered by a sensor on the system and the alarm signal being forwarded to the central station.
We generally recommend lowering Dialer Delay to its lowest setting, which varies from panel to panel… Some panels you can disable the feature entirely, some you cannot.
Dialer Delay settings are located in the Sirens and Alarms section of panel programming Settings → Advanced Settings → Enter Installer Code → Installation → Sirens and Alarms
Can be set between 15-45 seconds by default.
To increase or decrease this value, SIA Limits (in Installer Settings) will need to be disabled. Then you can select between 0 and 254 Seconds for the delay.