Her phone number.
1 seconds sound clip from the The Wasp Woman (1959) movie soundboard.
You can hear this line at 00:46:13.176 in the Blu-ray version of the movie.
Quote context
[...]
- Maybe one of the other drawers?
- The letter's been taken and you think you know who took it, is that right?
- My secretary, Miss Dennison.
- It might be better if I busted in on her cold.
- This way she'll have a chance to prepare a story.
[...]