I have an SPA504G firmware 7.4.4.
Here are relevant options:
I put 'dnd' and 'dir' either side of it to see what happened. The keys took place 3 and 4 so it is like it isnt seeing the button as being defined. I've tried giving it a specific position, as well as removing all other keys. Does anyone have any ideas? I'm a bit stumped... Admin guide barely mentions group pickup. If all else fails I suppose I can use a custom PSK but I'd rather not use them up on things that are supposedly already implemented.
Thanks in advance