Rename a header-param-name within the Contact header
I recieve a 300 mc with a contact header that looks like:
Contact: <sip:+19115551234@10.10.10.1:5060;dtg=ROUTE1?P-Asserted-Identity=%3csip:5551234567%4010.105.201.16%3e>
I would like to maniputate this to show an maddr, instead of the dtg header parameter. Is there a way to do this without storing every value in the contact and replacing dtg with maddr? Or is that the only way? I don't think it is possible to look for dtg and replace with maddr, but let me know if it is.