What does "He dials the number on his cell phone." mean in English for Spanish?

In English for Spanish, "He dials the number on his cell phone." means:

Él marca el número en su teléfono celular/ teléfono móvil.

Listen to "He dials the number on his cell phone.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 4, Level 1, Scene 1