| 摘要 |
<p>PURPOSE:To eliminate a useless inspection and to attain an effective inspection in a short time by inspecting that only a call that a logical channel establishes as an incoming call side with respect to a connection packet terminal in a public packet switching network via a private packet switching network is allowed to stand uselessly. CONSTITUTION:A means to verify the validity of the call established at every logical channel as the incoming call side is provided. The call of the logical channel where a connected packet terminal establishes a call is validity-judged. Thus a packet communication control equipment is formed which can effectively find the call that is established in the public packet switching network via the private packet switching network and allowed to stand uselessly through minimum processing and which can cut and restore the call.</p> |
