Welcome to the Cyara Knowledge Center

The {ListenForPsstAfter} tag ignores any silence periods that fall within the time specified in this tag and start detecting for any silence only after the timer has expired.

Note: The timer to ignore silence periods starts when non-silence audio is detected (i.e. it ignores any leading silence). If the timer expires in the middle of a silence after voice is detected, the PSST detection starts then and any silence before that is ignored.

E.g. If the prompt length is 25 seconds and we use {ListenForPsstAfter 24} in the tag then it tells our step to start calculating PSST after 24 seconds and set PSST Start Time=24. So it will ignore if PSST criteria matches in first 24 second of prompt.

Conditions and Restrictions

• Incompatible tags List: {Ignore}, {BargeIn}, {Repeat}, {Optional AudioLength},{Optional Speech}, {WaitForHangUp}, {Fax}.
• The {ListenForPsstAfter} tag value should be greater than or equal to 0 and less than or equal to 21599.
• Multiple instances of this tag are not allowed within the same step.
• If used in the Multi-Step Prompt, this tag can only be on the Initial Step

Example of usage:

In the example screenshot below, you can see the first Ignored Leading Silence in Red, The {ListenForPsstAfter} tag value in Orange, A block of ignored silence that falls inside the {ListenForPsstAfter} value period in Green, and finally the value actually counted towards the PSST highlighted in Black.