An issue may regard types of functionality.Logical formLearned from2 sentences. Functionality may be associated with a (conference object).Logical formLearned from2 sentences. (Control functionalities) can be in a router.Logical formLearned from2 sentences. (Control functionalities) may be disabled.Logical formLearned from2 sentences. A functionality may permit to operation.Logical formLearned from2 sentences. A functionality may be required from protocols.Logical formLearned from2 sentences. A document may enhance a functionality.Logical formLearned from2 sentences. Adition can be to a functionality.Logical formLearned from2 sentences. A session may depend on semantics of a functionality.Logical formLearned from2 sentences. Semantics may pertain-to a functionality.Logical formLearned from2 sentences. Justification can be for supporting aspects of a functionality.Logical formLearned from2 sentences. A design may pertain-to a (protocol functionality).Logical formLearned from2 sentences. (Overload situations) may be considered for a design of a (protocol functionality).Logical formLearned from2 sentences. A (protocol functionality) may have a role.Logical formLearned from2 sentences. Services may be handled by a (protocol functionality).Logical formLearned from2 sentences.