Licensing and Database Registration Limits

The Oracle Communications Unified Session Manager (and the Oracle Communications Session Border Controller) limit the number of unexpired registration cache entries globally. The total number of system registrations is configured with the registration cache limit parameter in the sip config configuration element.

The Oracle Communications Unified Session Manager also limits the number of registration cache entries that were obtained from a User Subscriber Database; only REGISTERs that prompted the database query are counted here. As User Subscriber Database entries are added and removed, this counter is updated accordingly. Note that it is the actual number of SD-contacts that count against the license limit. Discrete database registration license values range from 20,000 through 500,000 in increments of 20,000.

When a registering contact is rejected because it will exceed one of these limits, the Oracle Communications Unified Session Manager sends a 503 message to the registering endpoint.

Refer to the Oracle Communications ACLI Configuration Guide, chapter 2 Getting Started, Software Licensing section for how to install a license.