JavaScript execution loops inside the browser send background HTTP POST requests to a companion processing script (usually vdc_db_query.php ) every 1 to 2 seconds.
If you are a call center administrator, a developer, or a telephony engineer, understanding how this file works is essential for troubleshooting performance issues, customizing the agent screen, and optimizing daily workflows. What is agc/vicidial.php?
Changes in call status (e.g., customer hung up, call transferred). Channel updates from the Asterisk server.
When an agent logs in, a complex sequence of events is triggered across the web server, database, and telephony engine (Asterisk). agc vicidialphp work
: You edit agc/vicidial.php , but the agent interface remains unchanged.
Manager interventions, such as monitoring, barging, or sending chat messages. 4. Telephony Control Integration
Is there a scheduled callback that needs to pop up on the screen? Changes in call status (e
In a high-volume call center environment, audio quality inconsistencies are a major source of inefficiency.
The feature within the Vicidial PHP interface is an audio processing mechanism designed to normalize the volume of the agent's voice. By automatically adjusting the microphone input level, AGC ensures that the agent’s voice remains at a consistent, audible level for the customer, regardless of varying microphone hardware or the agent's distance from the device. This feature is critical for the "Web Phone" (WebRTC) implementation used by modern Vicidial clusters.
While it works on most modern browsers, Firefox or Chrome are generally recommended for optimal compatibility with the AJAX-based interface. Troubleshooting Common Issues : You edit agc/vicidial
: Ensure HTTP/2 or persistent connections are enabled in your Apache/Nginx configuration to minimize TCP handshake overhead.
: Tracks the real-time status of every logged-in agent (e.g., READY, PAUSED, INCALL). The script constantly updates this table to inform the dialer whether the agent can accept a new call.