A cold, impersonal voice could be heard throughout the entire central.

"I've been expecting your call," said the impersonal voice in place of a greeting.

He heard her clear, impersonal voice asking for an appointment to see him.

"I left very early," she went on, still in that neutral, impersonal voice.

She was thinking of that cool impersonal voice with the slight American accent.

It was the calm, impersonal voice of the receptionist below that answered him.

It was the same cold, impersonal voice he'd heard on the transceiver.

"Please wait," said the cool, impersonal voice of the library computer.

"Yes," said the impersonal voice of the house system.

She did not quite succeed in keeping her voice steady and impersonal.