OpenPhone 71/73/75 System Telephones Key Assignments161.2.3 Programmable Keysg The additional keys to the left of the display are free programmable keys.The system administrator can assign other internal call numbers to these keys foryou as additional call keys. These keys have also been assigned to external callnumbers at which you can be reached from an external number. In order to makea call with a call key, first press the key and then dial the call number.The LEDs of the call keys indicate the current status, see also the chapter Signallingon the Call Keys starting on page 46.The system administrator can also assign these keys as call keys for team functions.Information on the use of team functions can be found in the chapter Team Func-tions starting on page 84.You can program features and destination call numbers yourself directly on theprogrammable keys of the device that have not been set by the system adminis-trator. See the chapters on Programming Features starting on page 122 andProgramming a Destination starting on page 121 for more information. To use aconfigured programmable key, do the following:■ Short key press: The programmed destination call number is dialled or the pro-grammed function (feature) is carried out.■ Long key press: The key can be programmed with a MenuCard.For the System Administrator: Configuring the Keys of a System Telephone■ The keys of the System Telephones can be programmed in the Configurator,PBX Configuration: Devices: System phones menu.■ In the Configurator, PBX Configuration: Groups menu you can set up teamsand program team functions for the system telephones of the team members.In the “Team Function” chapter in the “Mounting and Commissioning” guideyou will find examples and explanations of various possible team configura-tions.