Definitions for "Abandoned call"
A call in which the caller hangs up before the call is answered. Calls in which the caller hangs up almost immediately do not have to be counted as abandoned. When configuring each peripheral, you can specify the minimum length of an abandoned call.
A call that enters the telecommunications network but is terminated by the subscriber before it is answered.
The caller hangs up before reaching an agent. This is also known as a Lost Call.