How to Blind-Monitor a VICIdial Agent by Session ID

There are two ways to silently listen to a live agent call in VICIdial. The first is the direct dial method: you dial 0 plus the agent's session ID and you are immediately placed into the call as a silent listener. The second is the 8162 roaming monitor extension, which lets you move between agents without hanging up and also provides a path to barge in if needed. This post walks through both methods step by step.

In both cases you need the agent's current session ID Agent session. A session ID Session ID is a number the VICIdial system assigns to an agent when they log in and register their phone. It looks like 8600051 — a seven-digit number starting with 86. The ID changes every time the agent logs out and back in, so look it up fresh before each monitoring session. The Real-Time report is the fastest place to find it.

Method 1: Direct session ID dial

Open the Real-Time report in your browser and locate the agent you want to monitor. Note their session ID. Pick up your VICIdial-attached phone and dial 0 followed immediately by the full session ID. For a session ID of 8600051, you dial 08600051 — eight digits total. VICIdial connects you silently. You will hear both sides of the conversation. Neither the agent nor the customer receives any signal that a third party is listening.

To stop monitoring, simply hang up. The agent's call is unaffected. If the agent finishes their call and moves to the next one while you are still listening, you will need to dial again with the same session ID if you want to hear the new call — the silent connection is to the specific call in progress at the time you dialed, not to the agent's phone station in general.

flowchart LR
  A[Open Real-Time report] --> B[Note agent session ID]
  B --> C[Pick up phone]
  C --> D{Method}
  D --> E[Direct: dial 0 plus full ID]
  D --> F[Roaming: dial 8162]
  E --> G[Silent listen on current call]
  F --> H[Hear extension prompt]
  H --> I[Dial 8 plus last 3 digits]
  I --> G
  G --> J[Hang up to stop]
  I --> K[Press any digit to roam]
  K --> H

Method 2: 8162 roaming monitor

Dial 8162 on your VICIdial-attached phone. You will hear the system say "extension." Dial 8 followed by the last three digits of the agent's session ID. For session 8600051, that is 8051 — four digits total. VICIdial places you silently into that agent's call. You hear both sides. The agent and customer hear nothing.

When you want to move to a different agent, press any digit on your keypad. The system disconnects you from the current call and returns you to the "extension" prompt. From there, dial 8 plus the last three digits of the next agent's session ID to jump straight into their call. You can cycle through as many agents as you like in a single 8162 session without ever hanging up. This makes 8162 the practical choice for supervisors who need to do periodic checks across a full team during a shift.

Practical tips and edge cases

The direct dial method (0 + full session ID) works on any VICIdial server. The 8162 roaming method also works by default, though on multi-server setups your administrator may have configured additional shortcut numbers that allow you to reach agents on other servers without knowing which server they are logged into — check with your admin before assuming 8162 only reaches your local server.

If you try to monitor a session ID that is not currently on a call, you may hear silence or receive no audio. The agent needs to be actively in a connected call for the monitoring to carry audio. An agent in not-ready status or waiting for a call Call monitoring will not produce anything to hear. Check the Real-Time report Real-time report to confirm the agent is listed as connected before dialing.

To understand the concepts behind blind monitoring and when to choose it over barge-in, see VICIdial Blind Monitoring Explained. To learn how to find the session ID you need, see How to Find a VICIdial Agent Session ID. The full reference for phone-based VICIdial functions is the VICIdial Phone-Based Functions Guide.

Every VICIfast plan ships a dedicated VICIdial server in under 40 seconds, with blind monitoring built in from the start so your supervisors can begin quality assurance work immediately.