if the ext is locked the display will say restricted when you try to make an outside call from them....

to make sure all exts are allowed to have access to all outside lines ...
go into programming
display:ent sys prog no:
your input: 604
display: day out co:
your input:press sp phone
display co(x)jak(01)enable or disable
your input: *
your input again:*
press autodial store

above will set all exts to have access to all lines in day mode
you will have to do the same again for night mode
prog 605 at start

hope this helps

peter