AltiGen has discovered that there are issues in using MultiTech CallFinder Cellular Gateway with AltiServ. You should hold off on using this MultiTech solution with AltiServ until further notice.
DTMF recognition issues have been reported in the field.
This is an issue that must be resolved by MultiTech; a fix cannot be implemented within AltiWare.
Please do not implement the MultiTech CallFinder until further notice from AltiGen.