Help passing DTMF tones in Dial Application

Asterisk Asterisk Support
1

My users can only pass DTMF tones when the T/blind transfer option is set in the Dial() application.

[outgoing]
exten => _+1NXXNXXXXXX,1
  same => n,Dial(PJSIP/${EXTEN}@twilio-oregon,,KT)
  same => n(end),Hangup()

If I remove the T, no DTMF tones are passed. Problem is, with T, the pound key immediately invokes a transfer. My users want to be able to use the pound key when they’re dialing outbound IVR’s to indicate that they have finished a sequence. E.g. “Please enter your social security number, followed by the pound key”

Is there a configuration option I’m missing to allow users to pass DTMF tones without needing to invoke the blind transfer feature?