The short answer
An ISA, or inside sales agent, works a team's leads by phone, text and email, qualifies them and books appointments for the agents who sell. The ISA does not go on listing or buyer appointments. Whether an ISA needs a real estate license depends on your state and on what they say.
What does an ISA do all day?
An ISA turns raw leads into appointments. In a 2017 NAR commentary, a Keller Williams lead generation director called ISAs "virtually the same as an outside sales agent", except that they do not go on appointments or walk the client through the sale. It is old and written by someone who trained ISAs, but the job description still holds.
That commentary names the inbound work: website registrations, listing inquiries, sign calls, Facebook registrations and direct-mail responses. Many ISAs also make outbound calls. A normal shift looks like this:
- First reply to new leads, by call and text.
- Qualifying questions: buying or selling, timeline, pre-approval, area.
- Follow-up on leads that went quiet, and check-ins with past clients.
- Booking the listing appointment or buyer consultation.
- Handing off to an agent, with notes in the CRM.
Why do real estate teams hire an ISA?
Teams hire one because agents who are out showing homes cannot answer every lead quickly. Pied Piper's 2026 study submitted 2,198 phone and web inquiries to local offices of 21 large brands in June and July. It found 68% of web inquiries got no response within 24 hours, and just 10% heard from an agent within an hour. On the phone, 33% reached an agent on the first call.
There are limits to that evidence. It measured offices of big brands, not teams with an ISA, and it does not show how many deals faster replies win. You will see big multipliers quoted for speed to lead. We could not trace them to a primary study, so they are not here.
Does an ISA need a real estate license?
It depends on your state, and the line usually falls at asking people whether they want to buy or sell. These three states show how far apart the rules sit. Check your own commission's current guidance before anyone dials.
| State | Unlicensed person may | Unlicensed person may not |
|---|---|---|
| Texas | Arrange a showing appointment for the license holder who will show the property | Call to find out if someone is interested in buying, selling or leasing, even to schedule a follow-up |
| New Jersey | Answer phones and forward calls | Make cold calls by phone or in person to potential listers, purchasers, tenants or landlords |
| California | Assist with cold contacting to canvass general interest, then refer or schedule | Try to induce the person to use a broker's services, or solicit on a specific property |
What calling and texting rules apply to an ISA?
Federal phone rules apply to every ISA, licensed or not. These are the main ones. State rules can add more, so check with your broker or attorney.
- Do Not Call. The FTC's Q&A says a company can call for three months after a consumer's inquiry, and for up to 18 months after a last purchase, delivery or payment, unless the consumer asks it to stop. Outside those windows, scrub against the registry.
- AI voices. The FCC ruled in February 2024 that AI-generated voices count as artificial under the TCPA, so those calls need the called party's prior express consent.
- Texting. Twilio's documentation says anyone sending SMS or MMS from an application over a 10-digit US number must register for A2P 10DLC.
- Fair Housing. An ISA who gets asked about neighborhoods or schools needs the same care as an ad, because federal rules cover oral statements too.
Human ISA, outsourced ISA or AI ISA?
Each option covers a different gap, and many teams will mix them. Your lead volume decides first. If you are paying for portal leads, work out what a missed one costs you.
| Option | Strong at | Weak at |
|---|---|---|
| In-house ISA | Live conversations, judgment, knowing your market | Nights and weekends, turnover, training time |
| Outsourced ISA | Wider hours without a new hire | Local knowledge, and your state's rules still apply to them |
| AI by text and email | Replying at any hour, every time, in the same way | Nuance, and anything a person should decide |
Can AI do an ISA's job?
AI can cover the first reply and basic qualifying, and a person should take the rest. Agents themselves are split. In NAR's 2025 Technology Survey, 33% saw a moderately positive impact from AI, 17% a significantly positive one, and 46% no noticeable impact. That was about AI in general, not ISAs.
We found no state ruling on whether an automated system that asks people if they want to sell falls under unlicensed activity rules. Ask your broker or attorney before you point one at a cold list. Replies to people who contacted you first are the safer place to start.
GHOBZ works with teams and developers in real estate. Its AI agents for real estate follow-up handle forms and messages and do not answer phone calls.
Sources
- NAR, The Rise of the Inside Sales Agent, January 3, 2017
- Real Estate News, Pied Piper lead handling study, October 6, 2026
- Florida Realtors, Pied Piper lead handling study, October 2026
- Texas Real Estate Commission, unlicensed individuals
- New Jersey Real Estate Commission, unlicensed assistants guidance
- California DRE, guide on unlicensed assistants
- FTC, Q&A on the Do Not Call provisions of the TSR
- FCC, Declaratory Ruling 24-17, February 2024
- Twilio, A2P 10DLC documentation
- NAR, 2025 Technology Survey release, September 18, 2025
Sources opened and checked October 31, 2026.



