Help Cannot use dial pad on incoming calls

[isaemm]

Ive been trying to use the dial pad on an incoming call over and over and over. But it will not work at all. I've been trying to verify my number for Google voice and i had a call back from T-Mobile which asks me too select options. But on both calls the dial pad will not send the tone. Has anyone else had this problem and if so how to fix it? Thanks

 

[sreum]

Go to the app manager and find the phone app. In there clear cache and clear data.

See if that fixes the problem.

 

[isaemm]

It just starting working by itself. Not sure what the issue was.