The OpenSIPS control panel is a PHP web portal OpenSIPS server for provisioning, which can provide system and user configuration for opensips. We can add, modify, and manage sip account information and permissions on this panel.
Sometimes it is impossible to access, you need to turn off the opensips firewall and selinux first.
① Turn off the firewall
systemctl stop firewalld
② close selinux
gentenforce to view its current status
vim /etc/selinux/config
Set to: SELINUX=disabled
Finally restart reboot