Basic Functions55• Enter an internal call number directly with manual line seizure; with spontaneousline seizure, press the star key twice beforehand.Multiple Trunk KeysMultiple trunk keys can be configured on your telephone (three max. on theAastra 800 / OpenCom 100 communications system) Each of these keys has its owninternal call number – independent of system configuration – which can also beassigned to its own external call number. Ask your system administrator about theconfiguration applicable to you.When you have multiple trunk keys configured on your telephone, you can dial a callnumber directly via one of these keys, please refer to the Pre-dialling starting onpage 63 chapter. The first trunk key is designated the preference key if you do notmake a selection.When making a call from the redial list or from the caller lists, the respective trunk keyis automatically seized from which the original call was made.TipUse the programmable keys for fast and convenient access to your device’s trunk keys.Assign the Line x function to one or multiple keys. The trunk key is then perma-nently assigned to the programmed key. You can also programme a key with theSelect Line function. You can then select the respective trunk key desired via thisprogrammed key. Please refer to the Key Programming starting on page 137 chapterfor further information.Multiple ConnectionsYour device can handle two connections simultaneously, i.e. you can speak with twocallers at the same time, and switch back and forth between these connections(toggle) or conduct a three-party conference. Any further callers will hear a busysignal.When the system administrator has configured a call queue, any further calls are givena place in the queue (please refer to the Calls in the Call-Waiting Queue starting onpage 58 section).
