Multiple Company Operators?

We have a setup where we basically have two separate companies combined onto one Trixbox. We have set the Company Operator in the General Settings to the reception desk of one of the companies. Is there a way to set it so that anyone hitting 0 while in a voicemail box of company A gets sent to reception desk A, while anyone hitting 0 while in a voicemail box of company B gets sent to reception desk B?

Thanks