Has Sage 100 Looked into Other Electronic Payment Applications?

Are there any other electronic payment solutions (i.e. credit card processer applications) that integrate with Sage 100 Contractor?  We're happy with the functionality of Paya Exchange and my understanding is that this is the only option that functions with the program.  However, our company owners are trying to find ways to tackle our Merchant Fees, which continue to increase, and wondered if there are other payment solutions available that could possibly alleviate those charges?