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Learn How to Deploy VoIP Call Center on VPS! This article provides a guide demonstrating how to deploy VoIP call center on VPS. This guide covers a complete ViciBox deployment on a Rad Web Hosting VPS for VICIdial call center operations, including VPS requirements, installation, networking, firewall configuration, SSL, and post-install verification. Important: ViciBox is officially supported on bare metal, KVM virtualization, VMware, and dedicated servers. It should not be deployed on OpenVZ/LXC platforms because Asterisk timing and audio performance can be negatively affected. Rad Web Hosting KVM VPS plans are suitable for ViciBox deployments. Recommended VPS Specifications Testing / Lab Environment Resource Minimum vCPU 2 Cores RAM 4 GB Storage 40 GB SSD IP Addresses 1 Dedicated IPv4 Production (10-25 Agents) Resource Recommended vCPU 4-6 Cores RAM 8-16 GB Storage 100+ GB SSD Network 1 Gbps IPs 1-2 Dedicated IPv4 ViciBox Express installations are typically suitable for small call centers and all-in-one deployments. Larger deployments should use clustered servers. Order a Rad Web Hosting VPS Recommended: KVM VPS SSD Storage Dedicated IPv4 Address Root SSH Access Reverse DNS (PTR) configured if outbound email is needed Before proceeding, collect: Server IP Root password Hostname Example: Hostname: vicidial.example.com IP: 192.0.2.10 How to Deploy VoIP Call Center on VPS To deploy VoIP call center on VPS, follow the steps below: Download ViciBox ISO Download the latest ViciBox release from: https://download.vicidial.com Current releases are based on OpenSUSE Leap and include: VICIdial Asterisk MariaDB Apache PHP Firewall Tools Upload ISO to Rad Web Hosting VPS If using VPS management: Open VPS Control Panel Upload ISO Mount ISO to virtual CD/DVD Reboot VPS into ISO Begin ViciBox Installation When the VPS boots: Select: Install ViciBox The installer will: Partition the disk Install OpenSUSE Install ViciBox base system All data on the selected disk will be erased. (ViciBox) Initial Configuration Wizard After reboot: Login: root The ViciBox configuration wizard launches automatically. Configure: Locale Example: English (US) Keyboard Example: US Keyboard License Accept License Agreement Timezone Example: America/Chicago Root Password Set a secure root password. The wizard may then offer system updates if internet access is available. Installing updates is recommended. (ViciBox) Configure Static Networking VICIdial should always run on a static IP. Add nameservers to /etc/resolv.conf: echo "nameserver 8.8.8.8" >> /etc/resolv.conf && echo "nameserver 8.8.4.4" >> /etc/resolv.conf Launch YaST: yast Navigate: Network Settings Configure: IP Address Subnet Mask Gateway DNS Example: IP: 192.0.2.10 Mask: 255.255.255.0 Gateway: 192.0.2.1 DNS1: 8.8.8.8 DNS2: 1.1.1.1 Apply changes. Verify: ping google.com Update ViciBox Refresh repositories: zypper ref Update packages: zypper up -y Reboot: reboot Do not use: zypper dup The ViciBox developers specifically recommend normal updates. Install VICIdial After login: Run: vicibox-install This launches the VICIdial installer. Choose Installation Type For most VPS deployments choose: Express Box Express Box installs: MariaDB Apache PHP Asterisk VICIdial onto a single server. Configure Hostname Example: vicidial.example.com Verify: hostname -f Output: vicidial.example.com Configure Database The installer automatically creates: asterisk vicidial mysql databases and users. Store generated credentials securely. Configure Telephony Set: External IP Example: 192.0.2.10 Internal IP Example: 192.0.2.10 For single VPS deployments these are often identical. Configure Firewall Open required ports. SIP 5060 UDP 5061 TCP RTP 10000-20000 UDP Web 80 TCP 443 TCP SSH 22 TCP VICIdial 8089 TCP (if WebRTC is used) Configure Rad Web Hosting Firewall Inside Rad Web Hosting firewall panel: Allow: 22 80 443 5060 5061 10000-20000 8089 TCP/UDP as appropriate. Install SSL Certificate ViciBox includes SSL tools. Install Certbot: zypper install certbot Generate SSL: certbot certonly --standalone -d vicidial.example.com Certificates stored: /etc/letsencrypt/live/ Access VICIdial Open browser: http://SERVER-IP/vicidial/admin.php or https://vicidial.example.com/vicidial/admin.php Default credentials are generated during installation. Change passwords immediately. Configure SIP Carrier Example SIP Trunk: Carrier Name Username Password SIP Server Navigate: Admin → Carriers Create carrier entry. Verify registration: asterisk -rvvv Then: sip show registry or pjsip show registrations depending on driver. Verify Services Check Apache: systemctl status apache2 Check MariaDB: systemctl status mariadb Check Asterisk: systemctl status asterisk Check VICIdial: systemctl status cron Verify Asterisk Connect: asterisk -rvvv Useful commands: sip show peers sip show registry core show channels Configure Backups Recommended daily backup: Database mysqldump --all-databases > /backup/mysql.sql Recordings /var/spool/asterisk/monitorDONE Configuration /etc/asterisk /etc/apache2 Store backups on: Remote FTP S3 Storage Rad Web Hosting Backup Service Security Hardening Disable Password SSH Edit: /etc/ssh/sshd_config Set: PasswordAuthentication no PermitRootLogin prohibit-password Restart: systemctl restart sshd Install Fail2Ban zypper install fail2ban Enable: systemctl enable fail2ban systemctl start fail2ban Common Troubleshooting Asterisk Not Starting Check: journalctl -xe and asterisk -cvvvvv No Audio Verify: UDP 10000-20000 Open Verify NAT settings. Phones Not Registering Check: sip show peers Confirm: 5060 UDP Open Web Login Fails Check Apache: systemctl status apache2 Review: tail -f /var/log/apache2/error_log Final Verification Checklist ✅ Static IP Configured ✅ Hostname Configured ✅ ViciBox Installed ✅ VICIdial Installed ✅ Asterisk Running ✅ MariaDB Running ✅ Apache Running ✅ SIP Trunk Registered ✅ SSL Installed ✅ Firewall Configured ✅ Backups Enabled ✅ Security Hardened Following these steps will provide a production-ready ViciBox/VICIdial deployment on a Rad Web Hosting KVM VPS suitable for inbound, outbound, predictive dialing, and call center operations. Conclusion You now know how to deploy VoIP call center on VPS.

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