A method for a speech response system to automatically transfer users to human agents. In data provided by an application on a first host for transport or communication to an application associated with a second host according to a first data transport protocol is intercepted at the first host and wrapped or encapsulated in a test data packet formatted according to a second data transport protocol. Further, an N-type region having a concentration from 31016cm3 to 11022cm3 is provided near a buried oxide film under the drain electrode. For achieving the aim of entirely digital of the ADPLL, the gains of the TDC and the DCO may be further adjusted in a digital manner.