This only works on calls made to an office number.

Her home and office numbers are in the same book.

The phone found the office number he wanted and made contact for him.

She left her office number and asked for a return call on a matter of great importance.

A number of other such offices have been used in the past.

The number of offices rose to 430 within four years.

There were a number of small offices in many other countries too.

There, reading it, he located his own name and office number.

At that, it took me a second or two, once I was in the booth, to remember the office number.

Can I reach you at your office number during the day?