Parking out not working on Cisco SPA5XX

[PJPMontreal]

I have one Yealink set to do the Parking in 5901 when call arrive.
I setup a Cisco SPA504G and another SPA525G both with last line for Parking out 5901. Till here, the process work fine and the lines flash red but when I press the line to take the call it give me "Temporally Unavailable To: Park +5901"
Both does the same error "Temporarily Unavailable" when trying to press the line set for Parking out 5901.

Any idea?

 

[PJPMontreal]

Solved... Just added * before 5901 in the device key value.
Ex:
fnc=blf+sd+cp;sub=park+*5901@domain.com;ext=park+*5901@domain.com;vid=1