Cold calls, at any level of business, get the instant "no" from me. If I am looking for a service and someone is getting back to me on it, fine. But soliciting (sic) out of the blue, even if we've done business before is wasting my time.
If we have done business before, and you've impressed me enough with your service, you can bet I will be calling you again. When I am ready.
I have had a few massage providers send me unsolicited texts saying "Would you like massage? Which I politely declined, to them never to text again, and deleted/blocked their number.