1. Was it your daughter , Imogen , who made that trunk call from Scotland this morning ? - He sighed , and shook his head.(WASPS)
2. Your mother used to phone me, although trunk calls in those days were only for emergencies . She used to ring at nine thirty in the morning when Will was in surgery. (WASPS)
3. Telkom's Long distance calling services are divided into two: -Trunk calls terminating to an area Over 60 Km radius from the reference charge point of the originating exchange. (Google)