Withheld CLI showing wrong numbers in UCA popup

[Rich14]

3300 CXi 11 REL 10.2
UCA Rel 4

Incoming calls via DDI direct to extns work correctly, they display incoming callers CLI or if it is withheld they show unknown number in the UCA pop up screen.
If callers ring the main site number they enter an MLAA. After keying options they are presented to phones, if the CLI is present the number displays correctly, if it is witheld incoming in the UCA popup either 302 is displayed or 303 (With name).
302 is not a valid extn or hunt group or number I can find on the system, 303 is a valid UCA softphone user.
Any ideas on how these two numbers are being displayed.

 

[boycey9]

your trunk numbers are clashing with your extension numbers, The bad news is you will have to delete all your trunks and renumber them.

 

[Rich14]

Thanks for fast response.
Your correct my trunks are 301 to 330.
Will renumber trunks.

Many Thanks