Listen to the sound clip Exactly. I'm invisible. What did you do to my phone? And what are my phone doing to me? from Candace Flynn - Phineas and Ferb: Quest for Cool Stuff - Character Voices (Wii):

Exactly. I'm invisible. What did you do to my phone? And what are my phone doing to me?

This sound is from Candace Flynn - Phineas and Ferb: Quest for Cool Stuff - Character Voices (Wii)

Character Voice sounds from the Wii game Phineas and Ferb: Quest for Cool Stuff.