Of course, testing speaking skills is best done when actually interacting with your subject in real time. Using computers takes away the physical face-to-face component of this interaction, but we can still have synchronous conversations, like on the phone, and we can still see our conversation partners if we have the correct setup. One of the modules that allows this is the Skype module.
Skype allows real-time conversations to take place over the Internet for free with other users of Skype or for low rates to non-users. The Skype module for Moodle allows you to set up video conferences with your students or have them video conference with each other. They can also chat and send files. The Skype module offers teachers the ability to engage their students in real conversations from anywhere. In a lab setting, this allows the teacher to interact with specific students and assess their skills while the rest of the class is working on some other assignment...