IP Office systems use either a license file loaded onto the system or subscriptions obtained from a subscription server.
Subscription Systems
For subscription systems, all extension entitlements are based on the user subscription:
SIP desk phones require the associated user to have a valid user subscription.
SIP softphone applications require the associated used to have a Unified Communications User user subscription.
Other Systems
For non-subscription systems, for following license requirements apply to SIP extensions:
Avaya SIP desk phones require Avaya IP Endpoint licenses.
Avaya SIP softphone applications require various user licenses that may vary depending on the particular application and the type of IP Office system.
3rd-party SIP telephones and extensions require 3rd Party IP Endpoint licenses.
When using Avaya IP Endpoint and 3rd Party IP Endpoint licenses, successful registration consumes one license count. There must be sufficient licenses of each type for the number of extensions required. On IP Office Server Edition systems, the user must be configured to a licensed user profile with a user license. Unlicensed users cannot login to an extension.
