toll automatic dialling

例句：

1. 1. The toll automatic dialling system is designed to reduce the number of calls.
   自动计费电话系统旨在减少呼叫数量。
2. 2. The toll automatic dialling system has been implemented in many countries.
   自动计费电话系统已在许多国家实施。
3. 3. The toll automatic dialling system is a convenient way for people to make long-distance calls.
   自动计费电话系统是人们进行长途电话通话的便捷方式。