Manually held call is transfered if BLF key is pressed

[braymond]

Of course if I explicitly press another line button and I then press the BLF or Speeddial button, it will work.

But that makes the operation of the phone not very user-friendly.

I even tried to create another account so I would have two accounts; I then made the incoming calls to go to the Line 2 and kepts the BLF and Speeddial buttons on Line 1. Still, if I put the caller (that is on Line 2) onhold and I press the BLF or speeddial key, I get the same behavior.

I hate to compare but Aastra phones have the concept of "Preferred Line" ... why Yealink phones lack (or seem to lack) this concept?

Thanks