Contact prospects again when a connection is accepted or the next message in an outreach sequence is due.
Your prospect gets a short sales call follow-up email with the agreed next step and timing, while you get a copy and any open questions.
Your prospect gets a sales meeting follow-up email with the promised material and agreed next step, and you stay copied.
Your quiet deals get personal follow-ups based on recent conversations, with a clear report on what was sent and what needs your review.
Your unanswered introductions get a relevant follow-up when due, and you hear when a referred lead replies.