Mark as Busy for BLF

[tryingtodomyjob]

Is it possible to mark the phone/line as busy for BLF even when the phone/line is not in use?

[Liam1809]

Someone can correct me if I'm wrong, but the only way I can think of this being achievable without the device/line being in use is through 'Do Not Disturb' DND.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_5_1SU1/cucm_b_feature-configuration-guide-for-cisco1251SU1/cucm_mp_d811ea0d_00_do-not-disturb-12-0.html 

Step 1. In Cisco Unified CM Administration, choose System > Service Parameters.

Step 2. Choose the Cisco CallManager service for the server that you want to configure. 

Step 3. In the Clusterwide Parameters (System - Presence) pane, specify one of the following values for the BLF Status Depicts DND service parameter: 

• True—If Do Not Disturb is activated on the device, the BLF status indicator for the device or line appearance reflects the Do Not Disturb state.
• False—If Do Not Disturb is activated on the device, the BLF status indicator for the device or line appearance reflects the actual device state.

[tryingtodomyjob]

So, the BLF indicator cannot reflect both the DND status and the line status.

If the line is being in use, can the DND status automatically be turn on?

[Liam1809]

As far as I know, BLF will still reflect both the line and DND status.

I don't know if it has changed within other models of phones, but when DND is set to on, it should display a red cross. When the line is busy it should display a phone which is off hook, along with a red indicator.