Is this dialogue OK?
Person A - I called you at least ten times. Why didn't you answer cell phone?
Person B - I'm sorry. I didn't hear my cell phone with the noise.

Question

Is this dialogue OK?
Person A   - I called you at least ten times. Why didn't you answer cell phone?
Person B   - I'm sorry. I didn't hear my cell phone with the noise.

Answer

Monique is right. But just a small typo "too noisy" instead of "to noisy"

You can also say:
I didn't hear my cell phone. There was a lot of noise.

Answer

Why didn't you answer your phone?

I couldn't hear my phone it was to noisy.