Hi list, I am trying to emulate the behavior of a traditional PBX where pressing a soft key on the phone will forward calls to Voicemail and turn on the lamp on that key for all phones in the group. I am able to switch on and off the forwarding to Voicemail by using a DB entry that is updated when you call a certain extension, but I am struggling with the BLF. What I am doing currently is to send an event to turn on the BLF, and one to turn off the BLF, as follows: BLF on: sendevent PRESENCE_IN proto: sip from: 1001@domain.com login: 1001@domain.com event_type: presence alt_event_type: dialog Presence-Call-Direction: outbound answer-state: confirmed BLF Off: sendevent PRESENCE_IN proto: sip from: 1001@domain.com login: 1001@domain.com event_type: presence alt_event_type: dialog Presence-Call-Direction: outbound answer-state: terminated On the phone, the soft key is programmed to monitor 1001@domain.com. 1001@domain.com shows as unregistered until I run one of the events on it. However, it doesn’t matter which I run, I am not able to control the on / off behavior on the BLF. The light comes on, and stays on until it looks as if the extension was unregistered again. What am I missing and how can I accomplish this? Thanks a million, Emrah