The number on the sign should not be your cell.
Someone in the parking lot calls the number on the pylon. You are in a showing, on a tour, or just not looking. If that number is your cell, two things happen, and neither of them is a lease.
The first: you miss it. Drive-by traffic does not leave a voicemail. They hang up and call the next panel they can read from the street. By the time you see the missed call, they are already talking to whoever answered.
The second: you pick it up. A lot of those calls are not tenants. They are SEO shops, sign companies, “just checking availability,” wrong numbers, and people who found your cell on LoopNet and want to sell you something. Your cell becomes a public listing line. Tenants, vendors, and noise all land in the same thread, and you start screening your own phone.
That is the hole the panel is supposed to close. The sign is there because a real user saw the space. The call is the hottest inquiry you will get all week, and it is also the one you are least likely to catch if the number is you.
What belongs on the panel
A number that is for that listing, and only that listing. Same digits on the sign, the flyer, the OM, LoopNet, Crexi, and the property site. One inbox for the assignment, not a personal line that also happens to be printed on a 4x8.
When someone calls it, a voice answers. Not voicemail. Not a transfer to your cell. The caller hears the property name and a few questions: who they are, what the space is for, how much they need, when they want it, and a number they can actually be reached on. Then they hang up. They never get your cell. You never have to pick up a vendor in the middle of a tour.
What you get back
If it is a real space need and a callback number, you get a text: name, use, size, timing, callback. Transcript and recording sit behind that. SEO pitches and wrong numbers still get logged so you can see volume. You open the book when you can, call the ones worth calling, and then you give out your cell on purpose, to a person you already decided to talk to.
That is the whole product. $99 a month per listing. Cancel when it leases.
The cell is for the conversation after you know who is calling. It is not the number on the sign.
Questions brokers ask
What is wrong with putting my cell number on a leasing sign?
Two things happen and neither of them is a lease. You miss the call, because drive-by traffic does not leave voicemail — they hang up and call the next panel they can read from the street. Or you pick it up and it is an SEO shop. Either way your cell becomes a public listing line.
Will a listing number give out my cell?
No. That is the whole point of the separation. You give your cell out on purpose, to a person you have already decided is worth talking to.
Can I keep my cell on the sign and put a listing number on the flyer and the portals?
Plenty of brokers do exactly that. The portals and the flyer are where the scraped-number vendor calls come from, so putting the listing number there and keeping the panel personal is a reasonable way to start.