Has anyone been successful in programming the busy lamp fields (BLF) on a Cisco 5xx phone? I see that TL has lots and lots of hints out there, but I seem to be unable to properly construct the proper Extended Function field.
I am trying to track status of SIP/822-xyztenant. CORE SHOW HINTS lists 822@local-extensions-xyztenant but I don't understand how to get that extension and context into the device itself. I have tried:
fnc=blf;sub=822@local-extensions-xyztenant@$PROXY;nme=822
fnc=blf;sub=822-local-extensions-xyztenant@$PROXY;nme=822
fnc=blf;sub=local-extensions-xyztenant-822@$PROXY;nme=822
fnc=blf;sub=822@$PROXY;nme=822
$PROXY is set to the proxy:port. I have multiple extensions 822 on my system so the last item seems wrong, but nevertheless it does not work.
Any thoughts?