The most reliable way to use CUCM for free is through the Cisco DevNet Sandbox . These are 24/7 remote labs where you can reserve a "Collaboration" instance. Cisco provides you with VPN credentials to access a pre-configured CUCM environment, allowing you to test APIs and configurations at no cost.
The most reliable way to use CUCM for free is through the Cisco DevNet Sandbox . These are 24/7 remote labs where you can reserve a "Collaboration" instance. Cisco provides you with VPN credentials to access a pre-configured CUCM environment, allowing you to test APIs and configurations at no cost.