Routing elements156 System functions and features as of R3.0syd-0367/1.3 – R3.0 – 03.20135. 9 Operator consoleThe system has one switching centre, which is defined under the name Operatorconsole in the internal numbering plan. Several operator consoles can be operatedon the same communication server. There are two types of operator consoles:• The Aastra 1560/1560ip and Office 1560/1560IP PC Operator consoles are OIPclient applications which are connected via the mainboard’s Ethernet interface.On the Aastra 1560 / Office 1560, voice is transmitted via the DSI nterface of asystem phone; on the beim Aastra 1560ip / Office 1560IP this done via IP, for ex-ample via a headset connected to the PC.• In combination with an Aastra M535 additional keypad the Aastra 5380/5380ipsystem phone can be used as a digital operator console.• The Office 45 system phone as an operator console connected to the DSI inter-face is supported as before.With the exception of type-specific characteristics the following explanations applyto all types of operator console. Details and properties can be found in the type-specific documentation.5. 9. 1 Routing Functions for Incoming CallsRouting an Outside CallIncoming calls are routed to the operator console(s) either directly or via a usergroup a call distribution element.On an Aastra 5380/5380ip or Office 45 operator console the calls are provided onthe line keys. If all the line keys are busy, other calls will be sorted into the callqueue.On an Aastra 1560 / Office 1560 the calls are entered in the external call queue. Toanswer the call the operator selects it directly from the call queue displayed on thegraphic interface.The operator can tell who the callers are from the call queue and can answer any ofthe call; the queue sequence does not have to be respected.