STU-I

[Image:STU-I.jpg|right|thumb|STU-I secure telephone desk set. Electronics were housed in a separate cabinet.]
The STU-I, like its successors sometimes known as a "stew phone", was a secure telephone developed by the U.S. National Security Agency for use by senior U.S. government officials in the 1970s.
Image:STU-I.Young.jpg|thumb|left|STU-I cabinet with desk set on top. The person talking is U.N. Ambassador Andrew Young, calling from New York City during the Israel-Egypt peace talks in the Carter administration.
[Image:STU-I-cabinet.jpg|thumb|STU-I cabinet front door open.]