+ e17 => 'Please don\'t use the words: @_ on here',
+ e18 => 'Cannot connect to $_[0] ($!)',
+ e19 => 'Invalid character in line',
+ e20 => 'token $_[0] not recognised',
+ e21 => '$_[0] not numeric',
+ e22 => '$_[0] not a callsign',
+ e23 => '$_[0] not a range (eg 0/30000)',
+ e24 => 'Sorry, Internet access is not enabled',
+ e25 => 'Sorry the value must be between $_[0] and $_[1]',