Without any doubt, someone can call directly to an agent extension even if they are on not Ready state. These types of calls are known as Non-ACD calls. Calls that come through the CTI Route Point >> CTI Port then script >> Select Resource are known as ACD calls and can only come if agent is in Ready state.
Also if I can have any document related to blind\consultative transfer.
There i no such documentation agents can do whatever they want. Blind or Consult purely their choice system cannot restrict them.
Regards
Deepak
