Administrator’s Guide for SIP-T4X IP Phones1362. In the desired DSS key field, select LDAP from the pull-down list of Type.3. Click Confirm to accept the change.To configure an LDAP key via phone user interface:1. Press Menu->Call Features->DSS Keys.2. Select the desired DSS key.3. Press or , or the Switch soft key to select Key Event from the Type field.4. Press or , or the Switch soft key to select LDAP from the Key Event field.5. (Optional.) Enter the string that will appear on the LCD screen in the Label field.6. Press the Save soft key to accept the change.Busy Lamp Field (BLF) is used to monitor a specific user for status changes on IP phones.For example, you can configure a BLF key on a supervisor’s phone to monitor the phoneuser status (busy or idle). Then when the user places a call, a busy indicator on thesupervisor’s phone indicates that the user’s phone is in use.When the monitored user is idle, the supervisor can press the BLF key to dial out thephone number. When the monitored user receives an incoming call, the supervisor canpress the BLF key to pick up the call directly. When the monitored user is on a call, thesupervisor can press the BLF key to interrupt and set up a conference call.Visual Alert and Audio Alert for BLF PickupVisual alert and audio alert for BLF pickup allow the supervisor’s phone to play an alerttone and display a visual prompt (e.g., “6001<-6002”, 6001 is the monitored extensionand receives an incoming call from 6002) when the monitored user receives anincoming call. In addition to the BLF key, visual alert for BLF pickup enables thesupervisors to pick up the monitored user’s incoming call by pressing the Pickup soft key.The directed call pickup code must be configured in advance. For more information on
