Configure Busy Lamp Field (BLF) for Cisco Wireless Phone 9821 (Unified CM)

You can configure the Busy Lamp Field (BLF) feature to allow the users to monitor the call status of a directory number associated with a speed-dial button on the phone.

When the BLF key is configured with call pickup disabled, the users can monitor the in-use state of the monitored line. The users can also place a call to the monitored line by using the BLF feature line key.

When the BLF key is configured with call pickup enabled, the users can monitor the in-use state and the alerting state of the monitored line. When the monitored line is alerting, the users can pick up the monitored line's alerting call by using the BLF feature line key.

For more information about the indicators on the BLF line key with different status, see the following articles.

For more information about how to set up the BLF speed dial and BLF call pickup in Cisco Unified Communications Manager (Unified CM), see Call pickup.

Add a new call pickup group.

In Cisco Unified Communications Manager Administration, select Call Routing > Call Pickup Group.
Click Add New.
Configure the required fields Call Pickup Group Name and Call Pickup Group Number in the Call Pickup Group Information section.
Click Save.

The Associated Call Pickup Group Information window appears. In the Current Associated Call Pickup Groups section, ensure that the new call pickup group number is selected.
In the Find Pickup Numbers by Numbers/Partition section, add more existing call pickup groups to associate with the new call pickup group.
Click Save.

Assign the new call pickup group to a directory number.

Select Call Routing > Directory Number.
Find and open a directory number.
In the Call Forward and Call Pickup Settings section, select the new call pickup group from the Call Pickup Group drop-down list.
Click Save.
Click Apply Config.

Configure BLF speed dial and call pickup for the directory number:

Select Device > Phone.
Locate the phone that you will set up.
In the left Association section, click Modify Button Items.
Select and add the item Add a new BLF SD from the Unassigned Associated Items to the Associated Items section.
Click Save.
Navigate to the Association section of the phone, click Add a new BLF SD.

The Busy Lamp Field Speed Dial Configuration window appears.
Find and select the configured directory number from the Directory Number drop-down list, and enter a label for the directory number.
Check the Call Pickup check box to use the BLF speed dial and call pickup. Then the users can answer incoming calls for the monitored line.

To make sure that the call pickup feature works, the primary line of the monitoring phone must be in the same call pickup group as the monitored directory number.
Click Save.

Enable or disable BLF audio notification

You can enable or disable the audio notification of incoming calls for the Busy Lamp Field (BLF) monitored line in different situations.

1	In Unified Communications Manager Administration, select System > Service Parameter.
2	Select a node from the Server drop-down list.
3	Select Cisco CallManager from the Service drop-down list.
4	In the Clusterwide Parameters (Device - Phone) section, configure the following parameters: BLF Pickup Audio Alert Setting of Idle Station : Select Play Tone or Disable to enable or disable the audio alert when the BLF monitored phone receives an incoming call and the phone is idle. Default value: Default. BLF Pickup Audio Alert Setting of Busy Station: Select Play Tone or Disable to enable or disable the audio alert when the BLF monitored line receives an incoming call and the phone is busy. Default value: Default.
5	In the Clusterwide Parameters(System - Presence) section, configure the parameter BLF Status Depicts DND. True: The monitoring BLF key can show the DND status of the monitored line. False (default): The monitoring BLF key doesn't show the DND status of the monitored line, and can only show the busy or idle status of it.
6	Click Save.
7	Select Device > Phone.
8	Locate the phone that you will set up.
9	In the Device Information section, set the following parameters: BLF Audible Alert Setting (Phone Idle): Select On or Off to enable or disable the audible alert sounds when no current call exists on the BLF monitored phone. Default value: Default. The configuration of the parameter BLF Pickup Audio Alert Setting of Idle Station in Service Parameter determines the alert option. BLF Audible Alert Setting (Phone Busy): Select On or Off to enable or disable the audible alert sounds when at least one active call exists on the BLF monitored line, but no call pickup alerts exist. Default value: Default. The configuration of the parameter BLF Pickup Audio Alert Setting of Busy Station in Service Parameter determines the alert option.
10	Click Save.
11	Click Apply Config.

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Enable or disable BLF audio notification

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