The collection will only be removed if they agree to a PFD or you get the OC to recall the collector in exchange for payment on the account as this move would terminate the collectors collection authority and per CRA rules they would be bound to remove their entry.
Ive had sucess getting the original creditor to recall the debt and paying them the full amount. After paying the OC, I dispute with credit report to have the reporting from the debt collector removed with proof of payment.
Im also have a collection from Convergent outsourcing. It is an old tmobille bill in the amount of 3,790. i dont have that amount right now. Im hoping that tmobile will agree to a settlement and recall the debt. I never tried to settle with the OC before. Im worried that they will not accept it, but it doesnt hurt to try!