On a vehicle or storefront
Field services need a number that remains readable at a glance. Make a mock-up at the size it will appear on your van or sign, then compare simple endings and repeats.
A restaurant, shop, or neighborhood service may use a word in its identity. Check that it reads clearly without a spoken explanation, and keep the full digits beside it.
At a reception or booking desk
An office main line can benefit from an uncomplicated ending and a consistent greeting. An event business may want an obvious group-booking contact. Decide who answers before deciding how many public numbers to buy.
Plano offices and Las Colinas visitor businesses may serve callers unfamiliar with local codes. Print all ten digits and label opening hours in Central time.
For sales and support
A Richardson technology business may separate sales inquiries from support cases. A phone provider can advise on queues and extensions; multiple departments do not automatically require multiple purchased numbers.
Use the comparison notes as practical prompts, then test the candidate with the people who will publish and answer it. Recommendations are editorial judgments, not promises of increased sales.