Hiding phone number when calling from Filemaker Go

[fed]

I can call a phone number from Filemaker Go, but I would like to add "#31# " to the start of the dialled number to hide the phone number from the person I am calling. The Phone script step does not work with the "#31# added in front of the phone number.

Any ideas how to go about hiding the phone number?

[fed]

I found a way to dial the phone with the #31# prefix using an iOS shortcut, but the same method does not work with FMP.  I think there might be an issue with sending the #31# characters out from FMP to the iOS.  Can anyone help with this?

Also, is there a way to run an iOS shortcut directly from FMP?  That would then allow me to use the shortcut solution to dial the prefix and phone number.

Thanks,

Fed