sending custom subject in ticket correspondence

hi

When adding correspondence (new ticket entry) in RT's gui, the user is
allowed to
send a customized subject for that particular transaction. The subject of
the resulting
email has the customized subject instead of the ticket's subject

Could this behavior be reproduced via a REST request?

So far, I have tried this by sending the following content:

id: <the ticket's id>
Action: correspond
Requestor: test_email@somedomain
Subject: some subject related to this entry
Content-Type: text/html
Text: <p>content</p>

The request url is: /REST/1.0/ticket/<ticket id>/comment

It works fine, the only problem being the subject of the resulting email
is the ticket's subject instead of the 'customized' subject

Any help will be appreciated

-- 
Regards,

Hugo Escobar

 <http://www.associationfinancialservices.com/>

4770 Biscayne Blvd, Ste 700
Miami, FL 33137

main: 305.677.0022
support: 305.921.4620
email: [email protected]

Follow us on Facebook and Linked-In
 <http://www.facebook.com/pages/Miami-FL/ASSOCIATION-FINANCIAL/64952991864>
   <http://www.linkedin.com/companies/1006276>

NOTICE: This email and any attachment to this email may contain
confidential information. If you are not the intended recipient, you must
not review, retransmit, convert to hard copy, photocopy, use or disseminate
this email or any attachments to it. If you have received this email in
error, please notify us immediately by return email and delete this
message. Please note that if this email contains a forwarded message or is
a reply to a prior message, some or all of the contents of this message or
any attachments may not have been produced by our firm. *As our firm may be
deemed a debt collector, if your payment is in default, we may be
attempting to collect a debt on behalf of the association, and any
information obtained may be used for that purpose.*