T31G name's

[asm]

Hi everyone.
Bought a phone t31g.
Created a remote phone book for it.
Connected. Everything is displayed normally.

When trying to speed dial 423, the name John is displayed on the screen. There are no more options on the screen. And that's right.
But when I dial 454 (Ben), I see Julia's name. But Julia's number is 403. And several numbers appear on the display. You need to press 2-3 times on the joystick down to find Ben's number in the list.
Moreover, if you dial the number 454, we will see the name of Julia and her number. We press the call button and the call goes right to Ben.

Why do I see one and the correct number for some numbers, while for others I see the wrong name and several names?