How to prompt user to enter his user id and password before he do queue login or logout

Hello All,

I need to prompt user to enter his user id and password before he do queue login or queue logout…
my extension_custom.conf for queue login (*511) and logout(*501) are as follow:


exten => _*501,1,RemoveQueueMember(${EXTEN:3})
exten => _*501,n,Playback(agent-loggedoff)
exten => _*501,n,Hangup

exten => _*511,1,AddQueueMember(${EXTEN:3})
exten => _*511,2,Playback(agent-loginok)
exten => _*511,n,Hangup

please help

Thanks & Regards
Winanjaya