What does "freephone" mean?

A service offering telephone calls free of charge to designated numbers.

What is a synonym for "freephone"?

Common synonyms include: toll-free number.

noun, verb

noun, verb ·Rare ·Advanced level

Noun

1
A service offering telephone calls free of charge to designated numbers. Ireland, UK, uncountable
"If they are not marketed properly they can easily be viewed as a poor man's freephone. Therefore, if such a service is to succeed, it needs to be promoted..."

Verb

"Not many companies have an international freephone."

From free + phone, perhaps after the Freefone (0800 number) service introduced in 1985 in the UK.