The Play Prompt Step
Continue the True output branch of the If step by dragging a Play Prompt step from the Media palette to the True icon under the If step in the Design pane.
Then configure the Play Prompt step to play back the prompt P[calling] + S[dest]. This prompt plays back a message announcing the number of the destination phone call to the original caller.
Figure shows the configured Prompt tab of the Play Prompt customizer window.

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In the General tab:
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Set the contact to the triggering contact
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Set Interruptible to No
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In the Prompt tab:
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Set the prompt to P[calling] + S[dest]
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Set Barge In to No
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Set Continue on Prompt Errors to Yes
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In the Input tab:
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Set Flush Input Buffer to Yes
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