Question about Yealink SIP T54W

Not sure if this is the right place to ask this or not. We switched from Mitel 8568 to Yealink SIP T54W. On my Mitel, I could press 324 and it would only ring for calls that were direct to my extension instead of every single call that comes in ringing on my phone. How can I set this up on a Yealink?