CER License Exceeded

Question

What happens when you add phones to CER but run out of licenses (before you can purchase more)?
Message-Phones being tracked exceed the number of user licenses available.
What 911 information is sent?
Is the correct ALI information sent?
What happens with the callback number?

Answer 1

Cisco Emergency Responder assigns IP phones to the Default URL if and only if it has failed, or has not yet tried, to locate them by connected switch port or IP subnet.  Assigment to the Default ERL has nothing at all to do with inadequate licensing.
User licensing in Emergency Responder is not enforced, except for email alerts to the system administrator and warnings that appear on the administrative user interface if Emergency Responder discovers more IP phones than it is licensed to support.  Emergency calls will be processed normally, even when user licensing is deficient.
However, it is still expected that Emergency Responder is licensed for all IP phones registered to the Unified Communications Manager cluster(s) that it supports.  Emergency Responder will attempt to discover all registered IP phones, and if not properly configured to locate all registered IP phones by connected switch port or IP subnet, then IP phones will be assigned to the Default ERL.  Persistent assignment of any IP phone to the Default ERL is an indication of improper configuration or operation, and should be analyzed and corrected.