Stop Trying to Get Past the Gatekeeper
The framing is the problem. A gatekeeper isn't an obstacle to defeat, and the data on when calls actually connect explains why the best tactic has nothing to do with what you say.
I want to argue against the framing before I get to any tactics, because I think the framing is most of the problem. "Getting past" a gatekeeper treats the person answering the phone as an obstacle between you and the call that matters. At a lot of companies, that person is a senior executive assistant who has real influence over which vendors even get considered; at the enterprise level, the EA is often the one compiling the shortlist, not just guarding a calendar. Treating that person as a wall to get through is a strange way to start a relationship with someone who might functionally be a decision-maker.
So the useful version of this isn't a trick. It's two separate, honest moves: be specific enough that screening you out costs the gatekeeper something, and call at a time when the screening layer often isn't even engaged.
Be specific enough that vague scripts get filtered out around you
Gatekeepers are pattern-matching against a category, not against you personally. Most of what they screen out is vague ("business opportunity," "quick call about your services") because vague is what a mass dial sounds like. A specific, honest reason for calling doesn't sound like the pattern they're trained to catch:
"Hi, this is [name] from [company], I'm trying to reach [person] about [specific, real reason]. Is he available?"
A first name for the person you're calling changes the interaction on its own. "Is Sarah in?" gets treated completely differently than "can I speak to whoever handles X?" A first name signals you did real homework, which is exactly the thing a mass dial can't fake.
The timing lever actually has numbers behind it
Here's where this connects to something I can actually point to instead of gatekeeper folklore. An analysis of 40,000 outbound calls found connection rates during peak windows (late morning, 10-noon, and late afternoon, 4-5pm) reached 21.4%, compared with 6.1% after 5pm. That's not primarily about gatekeeper psychology; it's about who's physically at a desk answering phones at all. A lot of front-desk and assistant coverage thins out right at the edges of standard business hours, which is exactly when a lot of decision-makers are still at their desks catching up. Calling right before a company's official day starts or right after it winds down isn't a trick on the gatekeeper. It's calling into a gap in coverage that happens to exist.
Ask for help instead of asking for a transfer
"I know you get a lot of these calls, can you help me figure out if [person] is the right one to talk to about [problem], or is there someone else?" This does something a direct transfer request doesn't: it turns the person answering into someone who can advocate for you, because you've asked them a question they actually know the answer to, instead of asking them to make a judgment call about whether you deserve access.
If they say no
A direct no from a gatekeeper is usually final for that specific attempt, and pushing rarely changes that in the moment. Thank them, ask if there's a better time to try, and move on. A different day, a different time, or an email that gets the target to tell their own assistant to expect your call are all better uses of your energy than arguing with someone who has no authority to say yes anyway.
The actual skill underneath this
Sounding calm, specific, and legitimate in the first ten seconds of a gatekeeper interaction is a smaller version of the exact same skill that decides the rest of a cold call: the tone research on first impressions doesn't stop applying just because the person who picked up isn't the buyer. Reps who've drilled staying calm and specific under a little pressure handle a skeptical assistant the same way they handle a skeptical prospect, which is one more place daily rep work pays off in ways that don't show up as "objection handling" on paper.