Changing Contact Header in 200 OK response HMP

Hi,

I have one question .

When i receive incoming INVITE request uri is in format  tel:number  so HMP automaticly puts this in Contact header in 200 OK response .

Is it possible to change  this Contact header on incoming call in 200 OK response  from HMP ?

As i can se Dialogic puts in Contact Request URI from INVITE. 

I woud like to put in Contact something like this number@hostname when i receice incoming INVITE with tel:number Request URI .