A new agent is on a difficult call and the customer is getting angry. A good supervisor wants to hear the call, coach the agent without the customer noticing, and step in only if needed. That is what call monitoring, whisper and call barging are for. This guide explains the three modes, when to use each, and how they work in the Voxdial Contact Center and Voxdial IP PBX.
Listen, whisper and barge: what each mode does
| Mode | Who hears the supervisor | Typical use |
|---|---|---|
| Listen (silent monitoring) | Nobody | Quality checks, training, checking a complaint as it happens |
| Whisper | The agent only | Coaching a new agent, giving a policy answer or an offer mid-call |
| Barge | Agent and customer | Taking over an escalation, calming a caller, closing a sale |
The modes build on each other. A supervisor usually starts by listening, moves to whisper if the agent needs help, and barges in only when the call needs a senior voice.
When to use call barging and whisper coaching
Whisper is the best training tool a contact centre has. The agent stays in charge of the call and the customer never knows a supervisor was there. Use it for:
- An agent’s first weeks on live calls.
- Calls that need a quick fact the agent does not have, such as a delivery date or an approval limit.
- Retention calls, where a supervisor can suggest the right offer at the right moment.
Call barging is for the moments when the agent cannot recover the call alone:
- The customer asks for a manager.
- The conversation is heading to a complaint, a refund or a legal threat.
- The agent is stuck and the queue behind them is growing.
Barging in should be rare. If supervisors barge into many calls, look at training, scripts or the knowledge the agents have, not just the call.
How supervisors monitor calls in Voxdial Contact Center
In the Voxdial Contact Center, the call centre dashboard lists every agent with their live status: Available, On Call, Paused, Break or Ringing. On the row of an agent who is on a call, the supervisor clicks the headset button to open the listen-in window.
- Enter your own extension, the phone that should ring.
- Choose Whisper to talk to the agent only, or Barge to talk to both parties.
- Click Start. Your phone rings, and answering it joins you to the call in the mode you chose.
The supervisor does not need to be at the agent’s desk. Any extension on the system can be the supervisor phone, including a softphone.
Monitoring works best alongside the live numbers. The wallboard shows calls waiting, longest wait, service level and abandon rate, so a supervisor can see when the floor needs help and which agent to check on first. Read call centre KPIs and the wallboard for what each figure means.
Call monitoring on the IP PBX with feature codes
Monitoring is not only for contact centres. The Voxdial IP PBX includes feature codes for call monitoring (ChanSpy), so an authorised user can dial a short code from their phone to listen to a call on another extension. A sales head can check a key account call this way, or a front office manager can help a new receptionist.
Feature codes can be switched on or off across the system, and the default code can be changed to suit your dial plan. Keep the monitoring code switched off unless you need it, and change it from the default so it is not easy to guess. See PBX feature codes for how codes work.
Tell callers that calls may be monitored
Customers should know that their call may be monitored or recorded. Most businesses do this with a short announcement at the start of the call, such as “Calls may be monitored or recorded for quality and training”. In Voxdial this can be an announcement or an IVR prompt before the call reaches the queue.
Tell your staff too. Agents should know that supervisors can listen in, whisper and barge, and why. A written monitoring and recording policy, shared in training, avoids surprises. If you are unsure what your sector requires, check with your legal adviser. Our call recording guide covers recording in more detail.
Tips for using monitoring well
- Coach, don’t police. Use whisper to help agents in the moment and discuss the call with them afterwards.
- Pick calls with a reason. Long handle times, repeat callers and new agents are better targets than random calls.
- Hand back after a barge. Once the problem is solved, let the agent close the call so the customer keeps one point of contact.
- Limit who can monitor. Give listen-in rights only to supervisors and managers who need them.
Want to see listen, whisper and barge on a live dashboard? Talk to BitVoice for a demo of the Voxdial Contact Center.
FAQs
What is call barging?
Call barging lets a supervisor join a live call between an agent and a customer, so all three can talk. It is used to take over or rescue a difficult call.
What is the difference between whisper and barge?
In whisper mode only the agent hears the supervisor, so the customer does not know. In barge mode both the agent and the customer hear the supervisor.
Does the customer know when a supervisor is listening?
Not during silent listening or whisper. Callers should still be told at the start of the call that calls may be monitored or recorded.
Can supervisors monitor calls from another location?
Yes. In Voxdial the supervisor enters the extension that should ring, so any phone on the system, including a softphone, can be used to listen in.
