Line Keys and Softkeys41-001452-00 Rev 00 – 07.2011 70Busy Lamp Field (BLF) KeyThe BLF feature on the IP phones allows a specific extension to be monitored for state changes. BLF monitors the status(busy or idle) of extensions on the IP phone.ExampleA Supervisor configures BLFs on his phone for monitoring the status of a worker’s phone use (busy or idle). When theworker picks up his phone to make a call, a busy indicator on the Supervisor’s phone shows that the worker’s phone is inuse and busy.On the 6737i, the busy and idle indicators show on the IP phone screen display next to the key programmed for BLF func-tionality. When the monitored user is idle, an icon with the handset on-hook shows next to the BLF key. When the moni-tored user is on an active call, a small telephone icon is shown with the handset off-hook.Configuring a BLF KeyUse the following procedure to set a key to function as "BLF". The procedure shows the softkey screens as an example.Note:The BLF setting is applicable to the Asterisk server only.Note:You can also use a BLF configured key to dial out. Contact your System Administrator for more informationAastra Web UI1. Click on Operation->Softkeys and XML.orClick on Operation->Expansion Module .Softkeys2. Select from “Key 1” through “Key 10” on the Top keys.orSelect from "Key 1" through "Key 20" on the Bottom keys.3. In the "Type" field, select BLF to apply to the key.4. In the "Label" field, enter a label to apply to this key.VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299www.InternetVoipPhone.co.uk | sales@internetvoipphone.co.uk | 0800 088 4846
