Legally, a marketing call is any call that encourages someone to buy, rent, or invest in something, and it requires the strictest form of consent: prior express written consent under the Telephone Consumer Protection Act (TCPA) when automated technology or a prerecorded or artificial voice is involved. A servicing call (also called an informational or transactional call) delivers information tied to an existing relationship or transaction, like an appointment reminder or an invoice notice, and it faces much lighter consent requirements and is generally exempt from Do Not Call rules. The purpose of the call, not who you are calling or how nice you are about it, is what decides which set of rules applies.
That single distinction drives almost everything else in phone compliance: what consent you must collect, whether the National Do Not Call Registry applies, and how much risk you carry if you get it wrong. Here is how the line actually works.
What makes a call a marketing call
Regulators do not care what you name the call internally. The FCC and FTC look at the content and purpose: does the call encourage the purchase of goods or services? If yes, it is telemarketing. That includes obvious cases like cold calls to homeowners after a hailstorm, but also softer ones:
- Calling past customers to promote a spring maintenance package.
- Following up on an old estimate to say prices are going up next month, so book now.
- A "free inspection" offer, because the free inspection exists to sell a roof.
Telemarketing calls made with an autodialer, an artificial voice, or a prerecorded message to a cell phone require prior express written consent. That means a signed (electronic counts) agreement in which the person specifically agrees to receive marketing calls from your business at that number, and the agreement cannot be a hidden condition of buying something. A checked box on your estimate form that says the customer agrees to receive promotional calls and texts, with the required disclosures, is the standard way small businesses collect it. We walk through exactly how consent tiers work in Do you need customer consent to call or text your customers?
Marketing calls are also where the National Do Not Call Registry has teeth. You may not place telemarketing calls to numbers on the registry unless you have written consent or an established business relationship, and even the established business relationship exception expires (18 months after the last transaction, 3 months after an inquiry). Many states run their own DNC lists with stricter rules on top.
What makes a call a servicing call
A servicing call exists to complete or support a transaction the customer already has with you. The customer is not being sold anything; they are being served. Classic examples for a contractor:
- An appointment reminder the day before a scheduled inspection.
- A call to say the crew is running 30 minutes late.
- A post-job follow-up to confirm the work was completed to the customer's satisfaction.
- A notice that an invoice is due or a payment failed.
- A callback the customer explicitly requested.
These calls are treated far more gently. They are exempt from the Do Not Call Registry entirely, because DNC only restricts telemarketing. Under the TCPA, informational calls to a cell phone using automated technology or an artificial voice still require consent, but only prior express consent, not the written kind. And the bar for prior express consent is low: when a customer gives you their number in connection with the transaction (on a contract, an estimate request, a work order), courts and the FCC treat that as consent to receive calls related to that transaction. For the fuller picture of how the TCPA sorts call types and technologies, see What is TCPA, and how does it apply to phone calls from a business?
Note the word related. Consent given for a roofing job covers calls about that roofing job. It does not stretch to cover a promotion for gutter guards six months later.
The dual-purpose call trap
The most common way small businesses stumble across the line is the dual-purpose call: a call that starts as servicing and pivots to selling. The FCC's position is blunt. If any part of the call encourages a purchase, the whole call is treated as telemarketing, and it needs telemarketing-level consent and DNC screening.
Some examples of servicing calls that quietly become marketing calls:
- The appointment reminder that ends with "and while I have you, we're running a special on attic insulation."
- The satisfaction follow-up that offers a discount on an annual maintenance plan.
- The invoice reminder that mentions a referral bonus program.
Each of those upsell lines converts a lightly regulated call into a strictly regulated one, retroactively, for the entire call. If the customer's number is on the DNC registry and you did not have written consent, that friendly add-on sentence is now a violation with statutory damages of $500 per call, tripled if willful. The safe rule is simple: keep servicing calls purely informational. If you want to promote something, run it as a separate, properly consented marketing campaign.
Why the distinction matters more with AI on the line
This line gets sharper, not blurrier, when an AI answers or places your calls. An AI voice agent speaks with an artificial voice, which is exactly the category the TCPA regulates most tightly on outbound calls. That is why any AI voice agent you use for outbound calling should be constrained to the servicing side of the line unless you have built a real telemarketing consent program.
It is also why Coastline drew the line where it did. Current, the AI assistant built into Coastline CRM, can answer your business line and place outbound calls, but the outbound side is deliberately limited to servicing calls: appointment reminders, post-job follow-ups, invoice reminders. Cold outreach and promotional calling are not supported, every call opens by identifying the business and disclosing that Current is an AI assistant, and per-contact opt-outs are checked before every outbound call. Keeping the system on the informational side of the line means the consent your customers already gave you when they booked the job is the consent that covers the call.
One adjacent issue to handle separately: if calls are recorded or transcribed, recording consent laws apply regardless of whether the call is marketing or servicing. Some states require all parties to consent. We cover that in Is it legal to record a phone call with a customer?
A quick self-test for any outbound call
Before your team (or your AI assistant) places a call, run it through three questions:
- Would this call exist without a sale to make? A reminder for a booked appointment exists because of the appointment. A "special offer" call exists to create a sale. The first is servicing; the second is marketing.
- Does any part of the script encourage a purchase? If yes, the whole call is telemarketing. Strip the upsell or treat the call as marketing end to end.
- Does the consent I have actually cover this call? Transaction-related consent covers transaction-related calls. Marketing needs its own express written consent, plus DNC screening.
If a call passes all three as servicing, you are in the lightly regulated lane: no DNC screening required, and the number the customer gave you for the job is generally consent enough. If it fails any of them, stop and build the marketing consent trail first. The fines are per call, they add up fast, and plaintiffs' attorneys actively recruit TCPA cases.
This article is general information about US law as of 2026, not legal advice. Rules change, states add their own layers, and your situation may differ; talk to a lawyer about your specific calling program.