Busy
This is a call condition in which transmission facilities are already in use. In a fixed network a line is considered busy when the caller goes off hook.
Keep up-to-date with everything Mpirical
Sign up to our email mailing list to get regular updates on new courses, quarterly round ups of content and more.
Subscribe to our YouTube Channel
With over 200 free videos (and counting!) covering a range of technology topics our channel is the place to be. Subscribe to be the first to know when we release videos.
FREE Intro to 5G Sample Course
Use this no-obligation free trial to get a taste of what it’s like to be an Mpirical student. Included with the trial is an all-access pass to our learning platform.
