https://community.cisco.com/t5/call-control/blf-lamp-status-update-via-sip-message/m-p/4562373#M3227 <P>I don't believe this is possible, unfortunately</P> Wed, 02 Mar 2022 18:15:31 GMT dstaudt 2022-03-02T18:15:31Z https://community.cisco.com/t5/call-control/blf-lamp-status-update-via-sip-message/m-p/4562161#M3226 <P><SPAN>Hello, is it possible to update lamp status (turn green or red) of a SD BLF using SIP Message (not TAPI) for IP Phone 8800 with on prem CUCM (version 12) ?</SPAN></P> Wed, 02 Mar 2022 14:52:29 GMT https://community.cisco.com/t5/call-control/blf-lamp-status-update-via-sip-message/m-p/4562161#M3226 michael.eprinchard 2022-03-02T14:52:29Z https://community.cisco.com/t5/call-control/blf-lamp-status-update-via-sip-message/m-p/4562373#M3227 <P>I don't believe this is possible, unfortunately</P> Wed, 02 Mar 2022 18:15:31 GMT https://community.cisco.com/t5/call-control/blf-lamp-status-update-via-sip-message/m-p/4562373#M3227 dstaudt 2022-03-02T18:15:31Z