Toll call and Trunk call

Toll call noun - A long-distance telephone call at charges above a local rate.

Trunk call and toll call are semantically related in long-distance call topic. In some cases you can use "Trunk call" instead a noun phrase "Toll call".

Trunk call noun - A telephone call made outside the local calling area.

Toll call and trunk call are semantically related (American) in telephone communication topic. You can use "Toll call" instead a noun phrase "Trunk call", if it concerns topics such as conversation using telephone.