Research anything you can on the company and go in prepared for the job you want.
Do your research. Come prepared. Be yourself, professional, industry knowledge, smile
Be prepared for a Career, not a job placement
Be passionate, enthusiastic, and patient care driven.
Talk about and give examples about how you collaborated on projects with other sales professionals to increase your sales of your lead products.
If you can avoid this job, do it. It is not worth it for the very low pay and demanding effort.