Stripping Headers

Hey all,

i need to strip some headers before i send traffic to evil Microsoft

this works well
same => n,SIPRemoveHeader("Alert-Info: ")

however i also need to strip the send_to_vm that is set on digium phones when user presses send to vm

the header is as
Diversion: sip:username@ipaddress;reason=send_to_vm

obviously this is a dynamic header - so i need to regex or wildcard it

is it possible to say wildcard in the SIPRemoveHeader so that i am looking for send_to_vm along with anything else infront / after it ?

Thanks