Yes this can be done. I used this for a call centre application with Linksys 504G phones. I wrote a python script that is always running and uses ESL to listen for certain events and then changes the color/status of the BLF depending on whether the agent is logged in or out of the mod_callcenter queue. I listen for 2 custom events that are called from the dialplan: <action application="event" data="Event-Subclass=blf::red,Event-Name=CUSTOM,username=${caller_id_number}"/> blf::green blf::red I also listen for 2 normal events: sofia::register PRESENCE_PROBE When one of the custom BLF events is received I craft a PRESENCE_OUT events which sends a NOTIFY to the phones and changes the BLF color. The reason I have to listen to the register and presence_probe events is because FreeSWITCH will override the BLF if I don't. When I receive one of these events I use mod_callcenter API commands to check if the agent is logged in or out and change the color of the BLF accordingly with a PRESENCE_OUT (notify) event. Hope this helps. Colin -----Original Message----- From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of François Sent: Friday, April 12, 2013 7:03 AM To: freeswitch-users@lists.freeswitch.org Subject: [Freeswitch-users] Setting custom presence/BLF Hello, Is it possible to modify the presence/BLF status of a specific directory user, or of a virtual one? Can it be done with ESL + custom presence event? Is there an API to check/set presence status of a user (to use with an empty "virtual" user just for BLF light)? The purpose would be to control BLF lights on the phones to show custom status like: - show presence of endpoints connected to another FS - light up if at least one of several phones (department) is in a call - light up if coffee is ready - ... Thanks, François. _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org