ADS-SR1 not recognizing all DTMF codes

all that seems to be recognized by the unit is 0 for repeat, nothing else. Never get tone responses. I power cycle the unit in case there is a timeout specified, nothing seems to work. Unit repeats fine and audio is clear, but the DTMF functions do not respond. I am using an FT70D and have no issues with DTMF with other devices.