A (telephone system) can be international.Logical formLearned from24 sentences. A (telephone technology) can be digital.Logical formLearned from24 sentences. Competition can be between (telephone companies).Logical formLearned from24 sentences. (Telephone calls) may pertain-to a US-president.Logical formLearned from24 sentences. (Telephone calls) may undergo a surveillance.Logical formLearned from24 sentences. A (telephone exchange) can be digital.Logical formLearned from24 sentences. A section may pertain-to a (telephone directory).Logical formLearned from24 sentences. A (telephone survey) may undergo findings.Logical formLearned from24 sentences. A (telephone conversation) can be with a male.Logical formLearned from24 sentences. A (telephone call) can be angry.Logical formLearned from24 sentences. A telephone may pertain-to a company.Logical formLearned from24 sentences. A spokeswoman may return (telephone calls).Logical formLearned from24 sentences. An attack can be in a (telephone call) to an agency.Logical formLearned from24 sentences. President may pertain-to a (telephone company).Logical formLearned from24 sentences. Foreign ownership can be constituted-of-or-filled-with (telephone companies).Logical formLearned from24 sentences.