Do not tell the Stand-in to "capture leads" and leave it there. Explain when a name helps, when email helps, when phone is appropriate, and when contact collection would feel pushy.
Open Stand-ins → the chosen Stand-in → Edit → Skills → Follow-up. The skill is enabled by default. Set When to offer a follow-up and Contact request recipient, then Save. Leave the recipient blank to use the Stand-in owner’s account email; this setting does not change digest delivery.
Phone should usually be asked later than email, and only when a call is clearly useful or the visitor offers it. Tell the Stand-in to record a request, without promising a response time your team has not agreed to meet.