How long should an email be if I want people to call?

Aim for 120 to 180 words. Long emails get skimmed, and skimmers don't dial. State the offer, give one or two details that answer an obvious objection, then ask for the call with the number right there in the sentence.

Should I include a link to my website too?

Usually no. Every extra link gives the reader an easier, lower-effort option than picking up the phone, and most people take the easy one. If you absolutely need a link, put it below your signature so it doesn't compete with the number.

How do I make my phone number clickable in Constant Contact?

Highlight the number in the editor, insert a link, and enter tel: followed by the digits with no spaces or dashes, like tel:5551234567. On mobile it becomes a one-tap call. Also leave the number as readable text for desktop readers.

What's the best time to send an email that asks for a call?

Send it during your phone hours, ideally early in the day so motivated readers can act right away. Weekday mornings work well for B2B. For home services, early weekday evenings often do better. Test two or three send times and track call volume on each send day.

How do I know if the email actually caused the calls?

Use a code word in the email and ask callers to mention it, or set up a separate forwarding number you only use in email. Simplest version: have whoever answers ask how the caller heard about you and write it down.

What if people reply to the email instead of calling?

That's fine, answer them. But if replies consistently outnumber calls, your email is probably too easy to reply to. Tighten the ask, remove any phrasing like "let us know," and make the number the only obvious next step.

How to Write an Email That Drives Phone Calls, Insights

Most emails that ask for a phone call fail for one boring reason: they give the reader three other things to do first.

If you want the phone to ring, the email has to be built around that single action. Everything else gets cut.

Here's how to write one.

Pick one job before you write a word

Decide the call is the only win. Not a click to your site. Not a reply. Not a brochure download.

That decision changes the whole email. You'll drop the "read more" link, the social icons, the three-column footer with your blog posts. All of it competes.

A service business, a clinic, a contractor, a law office, an insurance agent: these all sell better on the phone than on a landing page. If that's you, write like it.

Give people a reason to call, not just a number

"Call us today" is wallpaper. People scroll past it.

A reason to call sounds like a specific thing that happens when they dial. Try these shapes:

A fast answer. "Call and we'll tell you in two minutes if your roof is covered under warranty."
A limited slot. "We have four Tuesday morning appointments left this month."
A price question. "Call for a ballpark quote. No measuring, no site visit, just a number."
A human. "Call and you'll get Dana, not a phone tree."

Notice each one answers the quiet question in the reader's head: what do I get for the awkwardness of calling a stranger?

Name what happens on the call

Phone anxiety is real. A lot of people will click a link before they'll dial.

So lower the stakes. Tell them how long it takes, who picks up, and what you'll ask. One sentence does it: "It's about five minutes. We'll ask for your address and the year the unit was installed."

That one line removes more friction than any discount.

Structure that works

Keep it short. 120 to 180 words is plenty.

Subject line: hint at the outcome, not the phone. "Your furnace tune-up window closes April 30."
First line: state the point. "We're booking spring tune-ups now and the calendar fills by mid-April."
Two or three lines of proof or detail. What's included, what it costs, who it's for.
The ask. One call to action, written as a sentence with the number in it.
Hours and a fallback. "Mon–Fri, 8–6. If we miss you, leave a message and we call back same day."

Then stop. No P.S. with a second offer. No "or browse our services."

If you want a second opinion on the wording of your ask, run a few versions through the CTA Generator and pick the one that sounds like a person said it out loud.

Make the number impossible to miss

Small mechanics, big difference.

Write the number in plain text, large. Phones on iOS and Android usually auto-link numbers, but don't count on it.
Add a tel: link. In Constant Contact, highlight the number, insert a link, and use tel:5551234567 as the URL. Now it's one tap on mobile.
Put it twice. Once in the body near your ask, once in your signature.
Skip the image-only button. If images are blocked, your call to action disappears. Text button or text link beats a graphic here.
Use a real area code people recognize. Local numbers get called more than toll-free ones for local services.

Your email signature is doing more work than you think in a call-driven email. If yours is a wall of text, rebuild it with the Email Signature Generator so the number sits on its own line.

Send when someone can actually answer

A call-to-action email sent at 9 p.m. Saturday is a wasted send. The reader is motivated for about 40 seconds.

Match the send to your phone hours. Tuesday 9:15 a.m. beats Friday 4 p.m. for most B2B. For home services, early evening on a weekday often works because people are home and looking at the problem.

Then watch what happens. Keep a simple log: date, send time, calls that day versus a normal day. Three or four sends in, you'll see a pattern. The Send Time Optimizer can give you a starting point to test against.

Track calls without fancy software

You don't need a call-tracking platform to learn something.

Ask. Train whoever answers to say "How'd you hear about us?" and write it down.
Use a code. "Mention 'spring list' and we'll waive the trip fee." Now you know.
Use a second number. A cheap forwarding number used only in email tells you exactly what the email produced.
Compare days. Count calls on send day against the same weekday last week.

None of this is precise. It's directionally right, which is enough to decide whether to send that email again.

Mistakes that kill call volume

Too many links. Every link is a fork in the road. Pick one road.

Burying the number at the bottom. Put it where the eye lands, around the third or fourth line.

Vague timing. "Call anytime" means "call never." Give hours.

A 600-word email. Long emails train people to skim, and skimmers don't dial.

No reason to call now. Urgency doesn't have to be fake. Real constraints work: your schedule, a season, a deadline, a price change.

A spammy subject line. If it lands in the junk folder, nothing else matters. Run it through the Spam Score Checker before you schedule.

A short example you can copy

Subject: Four tune-up slots left for April

Hi Marcus,

We're finishing April's furnace tune-ups and have four slots open, all Tuesday mornings.

A tune-up is $89. It takes about 45 minutes and it's the thing that catches a cracked heat exchanger before it becomes a $2,400 replacement.

To grab one, call (555) 123-4567. It's a two-minute call. We'll ask for your address and the age of your unit, then book you.

Mon–Fri, 8 a.m. to 6 p.m. Leave a message after hours and we call back the next morning.

Ray Oyelaran Northside Heating

Swap the details. Keep the shape.

Write it, paste it into your Constant Contact account, send it to a small segment first, and count the calls. Then send the better version to everyone else.