Calling cards can be equipped with many features that make them easier to use. One basic feature to look for is speed dialing. With this feature, the card user can store a set of commonly called phone numbers for easy retrieval.

Travelers finding themselves frequently redialing a busy number will find messenger services quite helpful. They can record a message for delivery at a later time. Usually, the service will dial a designated phone number every 15-30 minutes until the call is answered and the message is relayed.

For billing purposes, account codes help allocate costs to different departments, clients or projects. Account codes can also help limit the use of corporate calling cards for personal calls.