Scripts whois users on join and sets +v ( voice ), if the nick is identified.

on *:join:#:{
  if ($nick != $me) { 
    set %whois. $+ $nick $chan 
    whois $nick 
  }
}

raw 307:*:{ 
; some of the services show "*is identified* or *is logged on as*."
; change it according to it.
  if ($4 == logged ) { 
    mode %whois. [ $+ [ $2 ] ]  +v $2
    unset %whois. $+ $2  
  }
  haltdef 
}

change the following line according to your services.
if ($4 == logged )