Can I use my own processor for receiving payments?

Can I use my own processor for receiving payments?

Hi,
I am a Merchant Services Rep and my rates going through my services are much lower than any of the options provided for by Zoho.  Is there a way to choose a different processor within Zoho?  I also provide Business Consulting Services and have several clients that could use your system.  I would love to be able to tell them they can incorporate their processing with their invoices and their CRM through Zoho.  If they can't, I will probably find a solution where they can.  My preference is to have them use Zoho since I like your product.
Thanks!
Lynda