With all due respect, I don't think you really understand how the process for MAPD's by telephone works. It has nothing to do with any FMO. Per CMS compliance, everything must be recorded and you must use a pre-approved pitch. The client will verbally state that they authorize the application (e-signature)and you will then submit it without having to send it first to the client. You can still email the SOA.
That’s why I said his FMO isn’t the issue.