If you’ve ever typed AGC VICIdial PHP into a search bar hoping for a simple, step-by-step agent control GUI setup guide—then welcome. You’re in the right place. In this post, I’ll walk you from zero to hero: installing, configuring, and logging agents into the AGC module of VICIdial. Whether you run a contact center in New York, Miami, Seattle, or Dubai, this guide will serve you. Let’s dive.
Why AGC VICIdial PHP matters for contact centers
You may already know VICIdial is one of the most popular open-source contact center platforms, with over 14,000 installations in more than 100 countries. Its agent-facing interface (the AGC, or Agent Control GUI) is where agents log in, handle calls, pause, wrap up, and more. The “vicidial.php” file in the AGC folder is the heart of it all.
When you get AGC wrong or misconfigure it, your agents can’t log in properly. That kills productivity. When you get it right, it becomes a fluid, stable, and powerful window into your contact center world. In this article, you’ll learn:
- How to install and configure AGC/VICIdial PHP step by step
- How agents in Chicago, LA, or Dallas can log in
- How to troubleshoot common login errors
- Best practices, security, and tips that KingAsterisk uses in our deployments
By the end, you (or your technical lead) should feel confident rolling out AGC VICIdial PHP across any US city or global branch.
AGC VICIdial PHP Setup — Step by Step
Now we will be discussing how to set up the AGC (Agent Control GUI) for VICIdial, from folder structure to agent login readiness.
Prerequisites & environment checks
Before diving into code:
- You need a working VICIdial + Asterisk installation.
- Apache or Nginx with PHP (7.x or 8.x, depending on your build).
- MySQL / MariaDB configured with your VICIdial database.
- Proper DNS/SSL if agents will connect from remote offices (e.g. Houston, TX or Seattle, WA).
- Proper port forwarding / firewall rules, especially for HTTP, HTTPS, RTP, and SIP.
- Ensure agents’ softphones or physical phones are registering correctly.
If any of these break, AGC won’t behave well.
AGC folder structure & where vicidial.php lives
Inside your web root, you should see something like:
- /var/www/html/agc/vicidial.php
- /var/www/html/agc/style
- /var/www/html/vicidial/admin.php
The agent interface runs from /agc/vicidial.php. If you ever need to customize text or languages, the AGC module supports editing via languages in the admin panel (without touching code). Also, you’ll find options-example.php inside the AGC directory — copy and rename it to options.php to enable toggles and custom vicidial configuration options.
Permissions, ownership & file settings
The AGC folder to your web user (e.g. www-data:www-data or apache:apache). Set correct permissions — avoid 777; use 755 or 750 for directories, 644 for files. Double-check SELinux contexts (if using CentOS/AlmaLinux) so Apache/PHP can read/write as needed.
Database & user configuration
Create your phone’s entries in the phones table (login_user, login_pass). Create your vicidial_users entries (user + pass). Assign that phone login to a campaign or user group. Make sure agent permissions include “Agent Call Manual” or other relevant rights if using APIs. If your phone’s table has login_user or login_pass set to NULL, the AGC login will fail.
Agent login flow & nuances
When an agent opens https://yourserver.com/agc/vicidial.php, the login screen will ask:
- Phone Login and Phone Password (from phones table)
- Agent User and Agent Password (from vicidial_users)
- Campaign (if multiple campaigns exist)
If any of these is wrong or inactive, the system throws a “Login incorrect” error. Once logged in, the agent web screen (powered by AJAX) polls status updates every second instead of full page reloads.
Agent Login Guide & Troubleshooting (AGC VICIdial PHP)
You’ve installed AGC. Now you must ensure your agents (in Phoenix, San Francisco, Austin, etc.) can log in and stay logged in smoothly.
Agent login instructions for your team
- Instruct agents to use https://dialer.yourcompany.com/agc/vicidial.php
- Enter Phone Login / Phone Password (from your provisioning sheet)
- Enter Agent User / Agent Password
- Select Campaign (if requested)
- Click Login
If any credential is wrong, they’ll get Login incorrect, please try again.
Enabling remote agents & global deployment
One of VICIdial’s strengths is supporting remote agents. You can run contact centers anywhere in the world. Agents can dial in from anywhere, as long as they can reach your server via SSL. To support this:
- Use a domain name + valid SSL certificate
- Use VPN or VoIP-optimized routing
- Keep firewalls and NAT settings correct
Also, to support enterprise-level scale, some AGC redesign efforts are underway to port the interface to React or Angular, but that’s advanced work.
Best Practices, Security & Scale (Your KingAsterisk Edge)
You now have AGC VICIdial PHP set up and agents logging in. Let’s step it up for reliability, security, and scale.
Harden your AGC & server
Rename or protect sensitive files like valid8.php (a known attack vector). Enable IP restrictions or allow-listing for admin areas. Run all server software (OS, Asterisk, VICIdial) on the latest stable versions. Periodically audit logs for login failures or brute-force attempts
Use options.php to tune behavior
As mentioned, you can copy options-example.php to options.php and tweak agent-screen settings, polling intervals, AJAX parameters, and script execution. This helps reduce server load and latency for large teams in New York or Los Angeles branches.
Monitor & scale
Use dashboards and real-time monitoring for agent statuses. Cluster your dialers if running multiple servers for different US regions. Segment by industry: e.g. healthcare call centers in Boston, financial services in Charlotte, insurance support in Phoenix. Use analytics and reporting to track KPIs (calls per agent, average handle time, wrap up rates)
Trends in 2025 you should watch
- AI-powered call routing & sentiment scoring
- Omni-channel contact center (voice + SMS + chat)
- WebRTC browser phones instead of physical phones
- Cloud-native deployment / containerization
- Edge computing for low-latency calls in cities like Austin, Denver, Phoenix
These trends mean your AGC interface must stay nimble and upgradeable.
How do agents log in via AGC VICIdial PHP?
Agents open https://yourserver.com/agc/vicidial.php, enter their Phone Login / Password, Agent User / Password, select a Campaign, then click Login — provided their phone and user creds exist and are active in the database.
FAQs
Q1: Why do I get “Login incorrect” even though credentials are correct?
Because either the phone’s entry has null login credentials, or they are inactive. Populate login_user and login_pass, set active = ‘Y’, and ensure they link to your campaign.
Q2: Can agents login from home / remote locations?
Yes, as long as your server is reachable via Internet, SSL, NAT/port forwarding is correct, and firewalls allow VoIP traffic.
Q3: How do I change the text in agent GUI (buttons, labels)?
Use the language editing feature inside VICIdial’s admin settings. You need not edit PHP files manually.
Summary
AGC VICIdial PHP is the lifeblood of your agent experience. A flawless setup empowers agents in New York to Miami, San Francisco to Dallas, or even abroad in London or Singapore. A broken one kills productivity.
If you want KingAsterisk to deploy, customize or audit your AGC setup (for Houston, Seattle, Chicago, or any region), reach out. We help mid-size to enterprise contact centers globally. Let’s make your AGC rock-solid so your agents stay focused, not frustrated.
Ready to get AGC VICIdial PHP running smoothly? Contact Us Today!
