The first message sent on the Moscow–Washington hotline on August 30, 1963, was the test phrase "THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG'S BACK 1234567890".
Pesan pertama dikirim pada hotline Moskow-Washington adalah frase test "THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG'S BACK 1234567890".