Farms and farmers’ markets are eligible to receive free landline EBT processing equipment. Once authorized for SNAP, your business will be contacted by Conduent (the licensed EBT vendor for Massachusetts). Conduent will offer you the option to obtain a landline EBT-only terminal. If you accept, the company will send you a Retailer Agreement and W-9 form to be completed and returned along with a cancelled check. To contact Conduent directly, call (866) 891-7897 or visit their retailer website here.
https://www.mass.gov/service-details/hip-for-farmers-and-farm-vendors
The other big EBT processor is Fidelity Information Services.