How should sales reps warm up before cold calling?
A good cold-call warm-up takes about 10 minutes: say your opener out loud a few times, run one or two practice calls on the objection you struggled with most yesterday, and set one clear goal for the call block. The point is to make your first real dial of the day sound like your tenth, so you don't spend your best leads warming up on them.
Why warm up before cold calling
Most reps start the day cold. The first few calls are rusty: the opener comes out rushed, the first objection catches them off guard, and the leads at the top of the list get the worst version of the rep. A short warm-up moves that rusty stretch onto practice calls instead of real prospects.
It also works because it's spoken and repeated. Saying answers from memory makes them stick better than re-reading them (Roediger & Karpicke, 2006), and short practice spread across days beats one long session (Cepeda et al., 2006). A daily warm-up is exactly that kind of practice.
A 10-minute warm-up routine
- Pick one thing to fix (1 minute). Look at yesterday's calls. Pick the one objection you folded on, or the one part of the call you rushed.
- Say your opener out loud (2 minutes). Three times, at the pace you want on the phone. The first ten seconds decide most calls; don't let your first prospect hear your first try.
- Run one or two practice calls (5 minutes). Against a prospect who raises that objection and pushes back again. Ask for the meeting at the end of each one.
- Fix one line (1 minute). Read the feedback and rewrite the one line that didn't land. Say the new version out loud once.
- Set a goal for the block (1 minute). One behavior, not a number you can't control. For example: "Ask for the meeting after every objection."
There's no published study on cold-call warm-ups specifically. This routine applies what the research says about practice in general; check it against your own first-hour numbers.
A 10-minute team warm-up (for sales managers)
A team warm-up doesn't need a long roleplay session. Keep it to the start of the shift:
| Minutes | Do this |
|---|---|
| 0 to 2 | Name the objection of the day: the one the team lost the most calls on yesterday. |
| 2 to 4 | Read the best answer anyone gave to it yesterday, word for word. |
| 4 to 9 | Every rep runs one practice call on that objection at the same time, on their own headset. |
| 9 to 10 | One rep shares the line that worked best. Start dialing. |
Because each rep practices on their own, nobody sits and watches, and every rep gets a real try instead of one person roleplaying in front of the room.
What not to do
- Don't warm up on real leads. "I'll call the bad leads first" still burns leads, and it builds habits on low-stakes calls.
- Don't make it long. A 30-minute warm-up turns into a meeting. Ten minutes, then dial.
- Don't just read the script. Silent reading feels like preparation but isn't practice. Say it out loud.
- Don't practice everything. One objection, the one you lost on yesterday, is enough.
How Della fits
Della Practice is a warm-up partner that's ready whenever your reps are. Each rep calls Della in the browser, she raises the objections they pick and pushes back, and they get a grade and one thing to fix in a few minutes. For teams using Della Live on real calls, Practice can pick the objections each rep missed most on live calls, so every rep's warm-up is different and aimed at their own weak spot. Della is AI; your reps stay in charge of every call.
Pricing (from dellasales.ai/pricing, November 9, 2026): On your own, your first practice call is free (up to 3 minutes), then $0.68 per practice minute with no subscription. For teams, Della Practice is $24.99 per rep per month (5-rep minimum, $124.95/mo) plus $0.68 per practice minute. Della Live is $199 per seat per month on a 12-month agreement ($239 month-to-month) plus $0.08 per live minute, with a 5-seat minimum.
Try it on a real voice call.
Take a free 3-minute practice call: Della plays a tough prospect, raises real cold-call objections, and grades you. Works in your browser. Della is AI.
Start my free practice callSee pricing →FAQ
How long should a cold-call warm-up be?
About 10 minutes. Long enough to say your opener and run one or two practice calls, short enough to do before every call block.
Should experienced reps warm up too?
Yes. Experienced reps don't need to learn the answers, but the first few calls of the day are still rusty. A short warm-up keeps those rusty calls off real prospects.
What should I practice in a warm-up?
Your opener, and the one objection you struggled with most on yesterday's calls. End each practice call by asking for the meeting.
Can a whole sales team warm up together?
Yes. Name one objection of the day, read the best answer from yesterday, and have every rep run one practice call on it at the same time, on their own headset.
Does warming up actually improve cold-call results?
There's no study on cold-call warm-ups specifically. Research on practice in general supports short, frequent, out-loud practice. Track your own first-hour results, like meetings booked per conversation, for a few weeks with and without a warm-up.
Can I warm up with AI instead of a coworker?
Yes. An AI voice prospect like Della Practice is available whenever you are, raises the objections you pick, and grades each call, so you don't need to pull a coworker off the phones.
Sources
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249 to 255. doi.org/10.1111/j.1467-9280.2006.01693.x
- Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T., & Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354 to 380. doi.org/10.1037/0033-2909.132.3.354
