When you are the whole business
A sole trader has the worst version of the phone problem. Every call arrives while you are doing the thing you are paid for, there is nobody to hand it to, and the two states available are "interrupted" and "unavailable" — both of which cost you something.
The trap of being the only number
You cannot be with a client and on the phone, so you pick one and lose the other. Taking the call interrupts work somebody is paying you to concentrate on; not taking it means an evening of callbacks, half of which go unanswered because your customers are also at dinner. Neither is a failure of organisation — it is arithmetic, and no amount of discipline fixes it.
What a sole trader can hand over safely
A large share of calls stop at these two questions, and both have fixed answers.
A range, so the people who cannot afford you can leave politely instead of booking an appointment to find out.
You are the only resource, so your calendar is the business. Getting that right is most of the job.
Name, number, what they need, when they are free — so a callback is one call rather than three.
What you should keep
Anything that is really a sales conversation. When you are a one-person business, people are partly buying you, and the call where somebody is deciding whether they trust you is the one call worth interrupting anything for. The goal is to arrive at that conversation having missed nothing, not to be spared it.
It also ends the answering-while-working problem
Sole traders answer the phone in places they should not: mid-treatment, under a sink, in a client’s living room. It is awkward for everybody, and the customer in front of you notices. Having somewhere for the call to go is what makes it possible to simply not pick up without losing the work.
The case for not bothering
If you are booked solid for months and turning work away, this solves a problem you do not have — your constraint is capacity, not enquiries. Answer honestly before spending anything: are you losing work you could have done, or protecting yourself from work you could not?
Frequently asked
Often, because a sole trader has the worst version of the problem: every call interrupts paid work, and there is nobody to hand it to. But not if you are already booked solid — then your constraint is capacity, not enquiries.
Anything that is really a sales conversation. When you are the business, people are partly buying you, and that call is worth interrupting things for.
Whether you do this kind of work, whether you cover an area, roughly what it costs, your availability, and taking details properly so a callback is one call rather than three.
They already do, and most of them chose you for it. Answering properly reads as organised, not as pretending to be bigger.