| 摘要 |
Method and apparatus for seizing a truck circuit in a telecommunications private branch exchange. In traditional private branch exchange, internal extension that have previously not been participating in an exchange connection are excluded from setting up an exchange connection given complete usage with outgoing and/including exchange traffic until at least one previously existing exchange connection is over for the purpose of a chronologically immediate set-up of an exchange connection. The present method and apparatus provides that the central controller of the private branch exchange, triggered by a corresponding command of an internal extension, checks the occupied truck circuits for disconnectability that is defined by a given criterion. Given a positive result of the check, the controller disconnects a trunk circuit and allocates this to the internal extension that triggered the command.
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