Modify the CSS presentation by navigating to System Settings and adjusting the Hex color codes for the agent screen interface.
Understanding this endpoint is crucial for system administrators and security professionals because it operates without full page reloads, making its API-like behavior a potential attack surface.
: It dynamically builds the buttons, scripts, call logs, and customer data fields assigned to that specific agent's campaign. 🔑 Key Functionalities of the Agent Screen
If you see raw PHP code displayed in your browser when accessing vicidial.php rather than the expected interface, PHP is not being properly parsed. This can occur if the PHP module is not loaded, the PHP handler is misconfigured in Apache/Nginx, or PHP files are not correctly associated with the PHP processor. Creating a simple test page with phpinfo() in the AGC folder can help verify whether PHP is functional.
enters a listening state. It waits for the database to signal that a lead has been dialed and bridged. When that happens, the screen transforms, instantly populating with the customer's data—name, address, and history—fetched from the vicidial_users and lead tables The Three-Way Dance
Because hundreds of agents may access agc/vicidial.php simultaneously, this script creates massive amounts of concurrent HTTP requests. Optimization prevents server crashes. Web Server Tuning (Apache/Nginx)
: Can load external web forms or custom scripts via iframes, passing variables like phone numbers or lead IDs to third-party CRMs.
: Once live, vicidial.php sends persistent background requests to utility scripts like vdc_db_query.php . This loop listens for new call triggers, pushes caller ID metadata to the screen (Screen Pops), and monitors whether the agent is in an ACTIVE , PAUSED , or READY status.
/vicidial/ : The administrative interface used by managers to configure campaigns, lists, users, and system settings. /agc/ : The portal dedicated entirely to front-line agents.
Administrators often interact with or reference this file for various system setups:
Understanding this folder structure is important because different VICIdial installations may place the agent interface in slightly different locations. Common paths include /var/www/html/agc/ , /var/www/agc.new/ , or /usr/src/astguiclient/www/agc/ (the source backup location).