Call monitoring
Call monitoring lets a supervisor listen to a live call, whisper guidance that only the operator hears, or join the conversation.
Call monitoring is the practice of a supervisor or team lead following a phone call live while it is in progress and stepping in when needed. It has three classic modes: listen, whisper and barge in. Teams use it to coach new operators, to support colleagues on difficult calls and for quality control. With the spread of AI voice agents, a fourth mode has become important: a person taking over a call the agent is handling.
How it works
In listen mode the supervisor hears the call but nobody hears them. In whisper mode the supervisor's voice goes only to the operator; the caller hears nothing, and the operator gets guidance without breaking the flow of the conversation. In barge-in mode the supervisor joins as a third party and everyone can hear them. The same English term is also used for a caller interrupting a voice agent, which is a different idea (see barge-in). In a takeover, the call moves from the AI agent or operator to the supervisor.
Why it matters
Listening to recordings afterwards measures quality, but it cannot rescue the call that is happening now. Live monitoring lets a supervisor step into a problem call while there is still time to fix it. Because monitoring involves processing personal data, decide in advance how staff and callers will be informed; our entry on KVKK and call recording covers the Turkish rules.
In Speakline
In Speakline a supervisor can listen to a call, whisper so that only the operator hears, join the conversation, or take over a call the AI agent is handling. Every monitoring session and every change of mode is written to an access log. Monitoring sits in the Call center alongside the agent desk and the live queue board.