Adding 2 accounts + EXT to Yealink phone

[Yealink_Michael]

hi

thanks for your information

do you mean that you want to set up a speed dial key and only use line 2 to call it ?

if yes , you can set as below :

   

or you can use the left and right key to switch the account you want to use as the default account , then all number will use this default account to call out .

TKS & BR

Michael