Aastra OpenPhone 73 User Guide - Page 38
For the System Administrator, End listening-in, End open-listening, Situation, Operation, Result
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OpenPhone 71/73/75 System Telephones Using a Headset Situation: Operation: You are telephoning over the handset, open-listening is switched on (LED of the key L flashes); You want to let another person listen in on the call over the headset. K Press headset key Result: Listening-in over the headset is now activated (LED of the key K flashes). End listening-in: K Press headset key (LED of the key K is off ) You are telephoning over K Press headset key the headset and want to end the call. End open-listening: L Press hands-free/ open-listening key (LED of the key L is off ) The connection is ended (LED of the key K is off ). For the System Administrator You will find more information on connecting a headset and suitable devices in the "Mounting and Commissioning" guide in the chapter "Extensions and Accessories for System Telephones". Note: Connected headsets must conform with the standard DIN EN 60 950-1, Point 6.2 ("Safety of information technology equipment including electrical business equipment"). For more information on this and a list of headsets which meet these requirements please refer to our website at www.Aastra-DeTeWe.de. You can also contact a headset manufacturer of your own choice, of course. 36