Can status be added to failover and call forwarding

It is available on DND, can't figure why it's not on the others!
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example1 - forwarding:
&action=fwd&arguments[0]=status

would return 0 if not forwarded
would return xxx-xxx-xxxx (10 digit phone number) if forwarded
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example2 - failover:
&action=fail&arguments[0]=status

would return 1 if failover set to vmail
would return 2 if failover set to busy signal
would return xxx-xxx-xxxx (10 digit phone number) if failover set to forward