The Create Container Prompt Step
Continue the DialByExtn output branch of the Simple Recognition step by dragging a Create Container Prompt step from the General palette to the Design pane, and dropping it over the Label step (DialByExtn) icon under the DialByExtn icon.
Then configure the Create Container Prompt step to create a concatenated container prompt, consisting of prefixPrompt (see The Second Create Container Prompt Step) and extnPrompt, a preset prompt that prompts the caller to either press or say the extension number (with a possible error message when looping back if there is an error connecting to the destination).