A customer owns three Codian 5300 MCUs with several video endpoints. Users complain that they are getting multipoint control unit port capacity errors when scheduling video conferences in Cisco TMS…

The Automatic MCU Cascading option in Cisco TMS Conference Settings is a configuration toggle that aids in cascading setup, but it does not autonomously manage resource allocation across multiple MCUs to prevent port capacity errors at scheduling time.

There is no 'Cascading option key' product that can be installed on a Cisco TMS server - this is not a valid Cisco licensing or feature mechanism.

Cisco TelePresence Conductor acts as a centralized resource broker that sits in front of a pool of MCUs (including Codian 5300s) and automatically allocates ports, balances load, and initiates cascading across devices when any single MCU reaches capacity. This automation directly resolves the port capacity scheduling errors in Cisco TMS without requiring manual administrator intervention or configuration changes per conference.

Manually installing cascaded MCUs adds hardware capacity but does not provide any automatic error correction logic; administrators would still need to manage conference assignments across the devices.