SMS sent through workflow miss relation

If we process an sms through workflow in module HelpDesk there are two problems:

1 - The sms record doesn't get related to contact.

2 - If the intention is to relate the sms to the Trouble Ticket record, the relation of SMS is missing.

Like #492 (closed) makes sense to relate the sms to Trouble Ticket record but i think in this case would be preferable to relate the sms to contact