DBdeltree( ) Deletes a family or key tree from the Asterisk database
DBdeltree(family[/keytree])
Deletes the specified family or keytree from the AstDB.
Always returns 0.
; create a couple of entries in the AstDB
exten => 123,1,DBput(test/blue)
exten => 123,2,DBput(test/green)
; now delete the key family named test
exten => 123,3,DBdeltree(test)