I have a magix with PRI and the site has 2 company's that ring the front desk. We would like it to ring on the right side for 1 company and the left for the other. Is that possible? Right now 1 company is ringing on the left on SS-Ring button and I setup a cover button on the right so it is kinda working. I don't have caller ID on the cover button though. also the second company doesn't go to AA after 5 rings like the first company does. I don't know what I am missing. Thanks for your help on this.