[Serusers] How to change display name

[Steve Blair]

Is it possible to change just the display  name portion of the from 
header? I'm trying to implement caller ID blocking but we cannot remove 
the actual from URI because that breaks our gateway based CDR generation.
I'm hoping changing the from header to something like:

from="Anonymous" <sip:376826 at myschool.edu>;tag=003094

Thanks,
Steve

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